gRPC protocol benchmarks

[Vladislav-Zolotaryov]

The webframework benchmark database is amazing.

It would be great to have an additional direct rival protocol to be added in form of gRPC. A lot of web frameworks support it, people often use it as a service 2 service communication.

The data would be very useful to decide whether it is worth it to transition to gRPC in some cases for performance wise reason.

It could be just a new tag like the platform, db, etc in form of protocol with values [http, grpc]