ABP gRPC Integration

[hikalkan]

• Investigate "how ABP framework can help developers on gRPC API creation".
• Implement gRPC endpoints for all the modules.
• Add a starting point for the startup templates.

[maliming]

https://github.com/Cysharp/MagicOnion Looks like a good class library.

[hikalkan]

Thanks @maliming it seems a very good library. However it seems a real-time communication system. With this issue, we only want a standard gRPC implementation.

[mehmetuken]

https://github.com/Cysharp/MagicOnion Looks like a good class library.

This library using without .proto files and only use .net apps beetwen. See this issue Cysharp/MagicOnion#159 (comment)
I think create shared .proto files project each module. It's helpfull any language implement and communicate each other.