MuonRPC_CnvTools: Interface cleanups.
Clean up IRPC_RDO_Decoder / IRpcROD_Decoder / RpcRDO_Decoder / RpcROD_Decoder
Use extends<> / DeclareInterfaceID. Use override keyword. Don't need to declare atomic members as thread-safe.
Clean up IRPC_RDO_Decoder / IRpcROD_Decoder / RpcRDO_Decoder / RpcROD_Decoder
Use extends<> / DeclareInterfaceID. Use override keyword. Don't need to declare atomic members as thread-safe.