Players are being added in the client

The client sends a debug player to the server, with a constant movement to
show that the new client _is_ connecting. The next thing to add is the
sync system, so that the clients know what the server looks like when they
first join.

libs/common/packet.hpp

@@ -98,6 +98,8 @@ struct PlayerNew {
 	int clientIndex;
 	char handle[PACKET_STRING_SIZE];
 	char avatar[PACKET_STRING_SIZE];
+	Vector2 position;
+	Vector2 motion;
 	//TODO Playerdata
 };