please provide CSP schema changes as well

Below are review comments from discussion between Ashutosh, me and Kiran:

• move 'poolSpec' from spec.nodes to spec (as per Kiran's comments
• there are too many 'name' fields in spec.nodes which would be confusing. So, make them more explanatory.
  cc: @AmitKumarDas

/lgtm
/approve
Approved CSPC schema!!!

AutoProvisioning of pool creation is supported via storagepoolclaim
When user creates auto spc spc-controller will internally converts the spc to cspc so pool creations will be handled by cspc controller.
Example spc:

apiVersion: openebs.io/v1alpha1
kind: StoragePoolClaim
metadata:
  name: cstor-sparse
spec:
  name: cstor-sparse
  type: sparse
  poolSpec:
    poolType: striped
    cacheFile: /tmp/pool1.cache
  maxPools: 1

when user created above spc spc-controller will convert to cspc.
High level steps for converting spc to cspc:

1. Build and create cspc from spc provided by the user.
2. Add finalizers on spc.

Deletion of cspc:

1. User should delete spc to delete cspc and pools

Internal work flow by spc controller:
Finalizers on spc will make sure below steps

1. Remove finalizers on cspc.
2. Delete corresponding cspc.
3. Remove finalizers on spc.