@UselessBullets on the discord discover my NetworkSystem make imposible to use halplibe on server without the client has also halplibe since my first UniversalPacket in sendToPlayerMessagesConfiguration() send a packet at id 88 which vanilla BTA will just panic :

Since UniversalPacket and BTA PacketCustomPayload are two class very similar this PR introduce a way to convert the UniversalPacket to PacketCustomPayload and proper mixin to handle wrapped UniversalPacket inside PacketCustomPayload

With this new feature we can now send an already exiting UniversalPacket as a PacketCustomPayload for the cost of some extra bytes but this as the advantage for fixing the original issue I just need to convert the sendToPlayerMessagesConfiguration() UniversalPacket to a PacketCustomPayloadand now if the client don't have halplibe, nothing will panic.

For the future may make possible from the halplibe consumer to choose if they want their message to be wrapped inside a PacketCustomPayload to prevent Bad packet ID but for now most mod that introduce extra network message should required the client to also have their mod installed.

Note: Please note this PR make old version of halplibe probably don't handle well the sendToPlayerMessagesConfiguration() if the server send the wrapped PacketCustomPayload to the client