(Contribution) May I add service blocks to protobuf contracts?

[mberdev]

After looking at all .proto files of DFHack, which are written in proto2 syntax, I noticed that the RPC functions only appear as comments :

// RPC GetSideMenu : EmptyMessage -> SidebarState

That's nice, but for automation purposes I'd like something more reliable. Instead of comments, I would like actual service blocks, as allowed by the proto2 syntax:

service MyService { rpc GetSideMenu (EmptyMessage) returns (SidebarState); }

May I create a Pull Request with that change? any objections ? Any blocker? It's literally just a conversion task, there's no caveat.