[Proposal] GRPC support for remote store

[onurkanbakirci]

To improve performance in retrieving tenant information from a remote service, we can use gRPC as well. Integrating built-in gRPC support, such as .WithGrpcRemoteStore, will enhance the developer experience and streamline the process.

Current HTTP implementation:
... .WithHttpRemoteStore(string.Concat(tenancyUrl, "{__tenant__}/remote-store"), httpClientBuilder => ...

Proposed gRPC Implementation:
... .WithGrpcRemoteStore(tenancyUrl, grpcClientBuilder => ...

[AndrewTriesToCode]

I like it. Have a few other things on the priority list but this would add a lot of value.