…nisticMNState

Member obj.keyIDOwner is read & write twice

…State (#5413)

## Issue being fixed or feature implemented
Member obj.keyIDOwner is read & write twice



## What was done?
Fixed: it is serialized once

## How Has This Been Tested?
Unit/functional tests in CI


## Breaking Changes
Data format in database changed in incompatible way

## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone

…/deser pubKeyOperator (#5397)

## Issue being fixed or feature implemented
Mobile wallets would have to convert 4k+ pubkeys at the V19 fork point
and it's a pretty hard job for them that can easily take 10-15 seconds
if not more. Also after the HF, if a masternode list is requested from
before the HF, the operator keys come in basic scheme, but the
merkelroot was calculated with legacy. From mobile team work it wasn't
possible to convert all operator keys to legacy and then calculate the
correct merkleroot.

~This PR builds on top of ~#5392~ #5403 (changes that belong to this PR:
26f7e96 and
4b42dc8) and aims to solve both of
these issues.~

cc @HashEngineering @QuantumExplorer 

## What was done?
Introduce `nVersion` on p2p level for every CSimplifiedMNListEntry. Set
`nVersion` to the same value we have it in CDeterministicMNState i.e.
pubkey serialization would not be via basic scheme only after the V19
fork, it would match the way it’s serialized on-chain/in
CDeterministicMNState for that specific MN.

## How Has This Been Tested?
run tests

## Breaking Changes
NOTE: `testnet` is going to re-fork at v19 forkpoint because
`merkleRootMNList` is not going to match

## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [ ] I have assigned this pull request to a milestone _(for repository
code-owners and collaborators only)_

same as  dashpay#5392, alternative solution

~based on dashpay#5402 atm, will rebase later~

pls see individual commits

reorg mainnet around forkpoint with a patched client (to allow low
difficulty), run tests

Another evodb migration is required. Going back to an older version or
migrating after the fork requires reindexing.

- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone _(for repository
code-owners and collaborators only)_

…isticMNState (dashpay#5413)

## Issue being fixed or feature implemented
Member obj.keyIDOwner is read & write twice



## What was done?
Fixed: it is serialized once

## How Has This Been Tested?
Unit/functional tests in CI


## Breaking Changes
Data format in database changed in incompatible way

## Checklist:
- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone

…/deser pubKeyOperator (dashpay#5397)

Mobile wallets would have to convert 4k+ pubkeys at the V19 fork point
and it's a pretty hard job for them that can easily take 10-15 seconds
if not more. Also after the HF, if a masternode list is requested from
before the HF, the operator keys come in basic scheme, but the
merkelroot was calculated with legacy. From mobile team work it wasn't
possible to convert all operator keys to legacy and then calculate the
correct merkleroot.

~This PR builds on top of ~dashpay#5392~ dashpay#5403 (changes that belong to this PR:
26f7e96 and
4b42dc8) and aims to solve both of
these issues.~

cc @HashEngineering @QuantumExplorer

Introduce `nVersion` on p2p level for every CSimplifiedMNListEntry. Set
`nVersion` to the same value we have it in CDeterministicMNState i.e.
pubkey serialization would not be via basic scheme only after the V19
fork, it would match the way it’s serialized on-chain/in
CDeterministicMNState for that specific MN.

run tests

NOTE: `testnet` is going to re-fork at v19 forkpoint because
`merkleRootMNList` is not going to match

- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [ ] I have assigned this pull request to a milestone _(for repository
code-owners and collaborators only)_

…/deser pubKeyOperator (dashpay#5397)

Mobile wallets would have to convert 4k+ pubkeys at the V19 fork point
and it's a pretty hard job for them that can easily take 10-15 seconds
if not more. Also after the HF, if a masternode list is requested from
before the HF, the operator keys come in basic scheme, but the
merkelroot was calculated with legacy. From mobile team work it wasn't
possible to convert all operator keys to legacy and then calculate the
correct merkleroot.

~This PR builds on top of ~dashpay#5392~ dashpay#5403 (changes that belong to this PR:
26f7e96 and
4b42dc8) and aims to solve both of
these issues.~

cc @HashEngineering @QuantumExplorer

Introduce `nVersion` on p2p level for every CSimplifiedMNListEntry. Set
`nVersion` to the same value we have it in CDeterministicMNState i.e.
pubkey serialization would not be via basic scheme only after the V19
fork, it would match the way it’s serialized on-chain/in
CDeterministicMNState for that specific MN.

run tests

NOTE: `testnet` is going to re-fork at v19 forkpoint because
`merkleRootMNList` is not going to match

- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [ ] I have assigned this pull request to a milestone _(for repository
code-owners and collaborators only)_

…/deser pubKeyOperator (dashpay#5397)

Mobile wallets would have to convert 4k+ pubkeys at the V19 fork point
and it's a pretty hard job for them that can easily take 10-15 seconds
if not more. Also after the HF, if a masternode list is requested from
before the HF, the operator keys come in basic scheme, but the
merkelroot was calculated with legacy. From mobile team work it wasn't
possible to convert all operator keys to legacy and then calculate the
correct merkleroot.

~This PR builds on top of ~dashpay#5392~ dashpay#5403 (changes that belong to this PR:
26f7e96 and
4b42dc8) and aims to solve both of
these issues.~

cc @HashEngineering @QuantumExplorer

Introduce `nVersion` on p2p level for every CSimplifiedMNListEntry. Set
`nVersion` to the same value we have it in CDeterministicMNState i.e.
pubkey serialization would not be via basic scheme only after the V19
fork, it would match the way it’s serialized on-chain/in
CDeterministicMNState for that specific MN.

run tests

NOTE: `testnet` is going to re-fork at v19 forkpoint because
`merkleRootMNList` is not going to match

- [x] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [ ] I have assigned this pull request to a milestone _(for repository
code-owners and collaborators only)_

## Issue being fixed or feature implemented
Many usages of `CBLS{Signature,PrivateKey,PublicKey}` assume using
global variable, even if can be specified explicitly.
Some of these usages have been deglobalized in this PR.

Some prior improvements and fixes are here:
[#5403](#5403)

## What was done?
- Refactored the uses of global variable of `bls_legacy_scheme` from
`SetHex`, `SetByteVector`, some rpc calls.
- Removed flag `checkMalleable` to simplify code because it's always
`true`.
- Removed dependency from `txmempool.h` on `bls.h` to speed up
compilation.

## How Has This Been Tested?
Run unit/functional tests.



## Breaking Changes
No breaking changes assumed. But in theory behaviour of some RPC can be
more explicit and predictable.

## Checklist:
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] I have added or updated relevant unit/integration/functional/e2e
tests
- [ ] I have made corresponding changes to the documentation
- [x] I have assigned this pull request to a milestone