Full google.golang.org/protobuf (Pulsar) support

[aaronc]

This issue outlines the minimum steps needed to fully support google.golang.org/protobuf generated code (i.e. Pulsar) in the SDK. It does not describe the full migration of the SDK to use Pulsar.

• Use google.golang.org/protobuf in gRPC queries feat(baseapp): support pulsar gRPC query servers #11192
• Use google.golang.org/protobuf messages in typed events #11278
• Use google.golang.org/protobuf in Msg servers
  • Implement protoreflect based amino JSON encoder #10993
  • Support cosmos.msg.v1.signer as alternative to Msg.GetSigners #11275
  • TxMiddleware support for pulsar ValidateBasic handlers #11276
  • v2 protobuf Registry #10978
• google.golang.org/protobuf support in Codec #10728