implement send manifest via GRPC endpoint

[troian]

Is your feature request related to a problem? Please describe.

Provider API is being migrated from REST to GRPC. V1 version of lease API is defined in the PR

Describe the solution you'd like

n/a

Describe alternatives you've considered

n/a

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• [X] I did search for other open and closed issues before opening this

Code of Conduct

• [X] I agree to follow this project's Code of Conduct

Additional context

No response

[brewsterdrinkwater]

April 16th, 2024:

• Handling this very cautiously, because need backwards compatibility for send manifest.
• Thinking about including around a future network upgrade.
• Will focus on other endpoints to implement.