[build] Make Protobuf optional in CMake build (#7061)

glass/src/lib/native/cpp/support/DataLogReaderThread.cpp

@@ -109,11 +109,13 @@ void DataLogReaderThread::ReadMain() {
                    schema, err);
       }
     } else if (auto filename = wpi::remove_prefix(name, "/.schema/proto:")) {
+#ifndef NO_PROTOBUF
       // protobuf descriptor handling
       if (!m_protoDb.Add(*filename, data)) {
         wpi::print("could not decode protobuf '{}' filename '{}'\n", name,
                    *filename);
       }
+#endif
     }
   }