Separate CRD for ClusterMaster & change indexerClusterRef to clusterMasterRef

[gaurav-splunk]

This PR targets the following changes -

Created a new CRD of type ClusterMaster. So now, to deploy an indexer cluster you need to create 2 CRs, one with type as ClusterMaster for CM and one for indexer cluster part with type as IndexerCluster.
With the introduction of new CRD for ClusterMaster, we don't need the old way of using replicas:0 to identify that this is for CM.
We have deprecated indexerClusterRef in favor of ClusterMasterRef. This is done to explicitly mention that any other resource which wants to connect to an indexer cluster will have to connect to Cluster Master part of the indexer cluster.
Moved all the SmartStore related logic to ClusterMaster code since SmartStore can only be configured through CM.
Made changes to UT and System tests accordingly.

[akondur]

Looks good.

[romain-bellanger]

Hi @gaurav-splunk,
I've reviewed the PR which looks great to me. I wanted to test it, I fetched the PR, built the image and deployed the operator, but I forgot to request our cluster admin to create the new CRD... This should be done tomorrow.
Just one comment: the definitions of the CRDs in deploy/crds/ have been reformatted. This is not really an issue, but it was easier for me to read the description of the properties split over multiple lines, than in a single very long line. I just wanted to share this feedback but it should not block merge.

[gaurav-splunk]

Hi @gaurav-splunk,
I've reviewed the PR which looks great to me. I wanted to test it, I fetched the PR, built the image and deployed the operator, but I forgot to request our cluster admin to create the new CRD... This should be done tomorrow.
Just one comment: the definitions of the CRDs in deploy/crds/ have been reformatted. This is not really an issue, but it was easier for me to read the description of the properties split over multiple lines, than in a single very long line. I just wanted to share this feedback but it should not block merge.

Hi @romain-bellanger Thanks for the feedback. This is an issue with the yq version I am using. I will update the PR with correct yq version installed on my machine. That should solve the indentation problem.