using other tech to get higher throughput

[gc-garcol]

Change transport layer:

• using rSocket instead of Grpc: migration from grpc to rSocket to get higher performance #13
• or using RPC protocol https://capnproto.org/rpc.html

Change serde kafka:

• Using capnproto instead of protobuf: using capnproto #10
• apply and benchmark apache fury: https://github.com/apache/fury