- Allow starting netplay host while a netpacket core is running without restart
- Allow connecting to a host while a netpacket core is running without restart
- Avoid clients getting stuck in connection loop if the host has the content paused while a client connects by automatically unpausing
Adds a new libretro interface for a core to send and receive custom network packets for implementing a communication based multiplayer system instead of using the default state serialization based multiplayer. Connection management is still done by the frontend while a core gains the ability to easily support tunneling of multi-console data communication traffic.