[controller] Client side foundations and refactor to support gRPC transport for controller APIs

[mynameborat]

Summary, imperative, start upper case, don't end with a period

• Introduces new controller transport client for gRPC
• Introduce interfaces and models for writing new controller APIs / migrating existing ones to use gRPC transport
• Demonstrate the foundations and patterns with createStore API

How was this PR tested?

Unit tested

Does this PR introduce any user-facing changes?

• [x] No. You can skip the rest of this section.
• [ ] Yes. Make sure to explain your proposed changes and call out the behavior change.

[sushantmane]

@mynameborat - When you get a chance, could you please rebase and update the PR to incorporate the latest server-side changes? Thanks!

[github-actions[bot]]

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[github-actions[bot]]

Closing this pull request due to 37 days of inactivity. This is not a judgment on the value of the work. If you would like to continue, please reopen or open a new PR and we will be happy to take another look. Thank you again for contributing.