Summary of Bug

Some IBC proto files (e.g. ibc.tendermint.rs::Header) need to reference some other proto files and structures (e.g. tendermint.types.rs::SignedHeader or tendermint.types.rs::ValidatorSet) that belong to tendermint-rs where we expect the conversions between raw and domain types are implemented.
Presently the ibc-proto files point to duplicate tendermint files in ibc-proto, in particular tendermint.types.rs for the examples above. But I believe all tendermint files in IBC proto are dups of the ones in tendermint-rs

Version

master

Steps to Reproduce

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