Split normal sockets and p2p sockets handling v2

[RipleyTom]

• Split normal(STREAM & DGRAM) sockets polling from p2p sockets polling into 2 separate threads. This should help a little bit with responsiveness(as before there was a 1ms added delay for native/p2p socks polls).
• Add a mechanism to both threads to make sure it's sleeping if no sockets are polling/no p2p sockets are active(the p2p thread must constantly poll to check for new data as it operates simulating the system receiving raw data and spreading it to potential active sockets/rpcn internal systems/signaling).
• Simplified a few things to avoid code repetition.