Boblight fix

- The default Boblight priority has been set to 128. If the sent priority differs from the default priority, it is registered (https://hyperion-project.org/threads/hyperion-ng-enigmalight-boblight-server.3558/#post-15006)
- Submodule flatbuffer updated to current master

Signed-off-by: Paulchen-Panther <16664240+Paulchen-Panther@users.noreply.github.com>

libsrc/boblightserver/BoblightClientConnection.cpp

@@ -192,6 +192,9 @@ void BoblightClientConnection::handleMessage(const QString & message)
 					{
 						// clear the current channel
 						_hyperion->clear(_priority);
+
+						// register new priority
+						_hyperion->registerInput(prio, hyperion::COMP_BOBLIGHTSERVER, QString("Boblight@%1").arg(_socket->peerAddress().toString()));
 					}
 
 					_priority = prio;