Simplify signaling by making Matching2 a layer over normal signaling.
Implements UPNP port forwarding
Implement sceNpMatching2AbortRequest
Fix reported bw in sceNpUtil
Hack for Fat Princess binding udp on 3658
Reenable CB for sceNpBasicAddPlayersHistoryAsync
Misc fixes
Bump protocol version
Improve signaling RTT calculation for client
Implement score game data functions
Various sceNpScore fixes
Verify flatbuffer buffers
Use std::variant for transaction specific data