Attach to cluster controller through Networking

[AhmedSoliman]

Attach to cluster controller through Networking

This PR includes:

• Attachment of PPM to cluster controller now use Networking
• PPM observes partition processor status through a buffered watch mechanism
• PPM can now send control messages (unused at this PR) to processor for future use.
• PPM collects state information from running processors. This will be used in a follow PR to response to controller requests about partitions.

Cluster controller grpc service is kept for external tooling integration (CLI, etc.)

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Stack created with Sapling. Best reviewed with ReviewStack.

• #1514
• -> #1500
• #1511

[github-actions[bot]]

Test Results

 99 files  ±0   99 suites  ±0   8m 5s :stopwatch: -51s  84 tests ±0   82 :white_check_mark: ±0  2 :zzz: ±0  0 :x: ±0  215 runs   - 1  209 :white_check_mark:  - 1  6 :zzz: ±0  0 :x: ±0 

Results for commit 4f22a938. ± Comparison against base commit 1d7ac91b.

This pull request removes 1 and adds 1 tests. Note that renamed tests count towards both.

dev.restate.e2e.JavaWorkflowAPITest ‑ Workflow cannot be submitted more than once

dev.restate.e2e.runtime.IngressTest ‑ Idempotent send then attach/getOutput

:recycle: This comment has been updated with latest results.

[AhmedSoliman]

Linter error is on generated code, this will be fixed in the next PR in this stack.

[AhmedSoliman]

Significant changes are incoming to this PR, putting this back as WIP.

[AhmedSoliman]

This should be ready for review. PTAL @tillrohrmann.