Flat buffers support

[gedw99]

Would you be ok with adding flatbuffers ?

I used to use protobuf but now flatbuffers is mature. It’s much faster and I am using it on golang projects

it also makes it much easier to compile to wasm with tinygo if your interested

[andeya]

I need to evaluate the feasibility before I give you an answer

[gedw99]

example usage:

https://github.com/apache/skywalking-banyandb/blob/main/banyand/liaison/grpc/grpc.go

https://github.com/untillpro/dynobuffers