feature(interceptors): gRPC interceptors support

[cv65kr]

Reason for This PR

roadrunner-server/roadrunner#1313

Is first step to create OTEL plugin for GRPC.

Description of Changes

This PR introduce possibility to have own middleware (interceptors) for GRPC server.

License Acceptance

I used package based on Apache2 licence, I am not sure if this impacting RR licence.

PR Checklist

[Author TODO: Meet these criteria.]
[Reviewer TODO: Verify that these criteria are met. Request changes if not]

• All commits in this PR are signed (git commit -s).
• The reason for this PR is clearly provided (issue no. or explanation).
• The description of changes is clear and encompassing.
• Any required documentation changes (code and docs) are included in this PR.
• Any user-facing changes are mentioned in CHANGELOG.md.
• All added/changed functionality is tested.

[rustatian]

Hey @cv65kr 👋🏻
It's a very nice feature :) The funny thing is I have a local PR with almost the same code 😄 But I have no time to push it to the upstream.

[cv65kr]

@rustatian 😄 I prepared also changes for otel grpc, I will ping you tomorrow to get some aggrement how we want to processed with it.

And generally looks like i screw it github history, so tomorrow will fix it.

[rustatian]

@rustatian smile I prepared also changes for otel grpc, I will ping you tomorrow to get some aggrement how we want to processed with it.

And generally looks like i screw it github history, so tomorrow will fix it.

I'll be glad to help 🤝.
This might be a part of this ticket: roadrunner-server/roadrunner#1313

[rustatian]

Good work 👍🏻 Thanks @cv65kr ⚡

[rustatian]

The last thing is...... docs 😄
But that might be done with the OTEL gRPC Interceptor PR because you might add it as an example.