`gRPC` optimizations

[radumarias]

https://github.com/hyperium/tonic/blob/master/examples/src/autoreload/server.rs
https://github.com/hyperium/tonic/tree/master/examples/src/cancellation
https://github.com/hyperium/tonic/blob/master/examples/src/dynamic/server.rs investigate it if helps
https://github.com/hyperium/tonic/blob/master/examples/src/mock/mock.rs maybe helps while developing
https://github.com/hyperium/tonic/blob/master/examples/src/multiplex/client.rs in our case we have the same service so I assume cloning the client does the same thing
https://github.com/hyperium/tonic/tree/master/examples/src/timeout
https://github.com/hyperium/tonic/tree/master/examples/src/tls_rustls
https://github.com/hyperium/tonic/tree/master/examples/src/tls
https://github.com/hyperium/tonic/tree/master/examples/src/tls_client_auth

radumarias/rencfs-daemon#10