[Protocol] GameSpy 1 support with the games Unreal Tournament and Battlefield 1942. (#9)

* Initial files + unreal tournament

* Fix master_querant

* Split by delimiter and collect into hashmap

* Furter port to accept more packets

* Improve getting the server's values

* Some initial players parsing

* Players parsing

* Add error handling

* Add some more fields

* Add Battlefield 1942 support.

* Add query_vars and some docs

src/games/mod.rs

@@ -85,3 +85,7 @@ pub mod avorion;
 pub mod ohd;
 /// V Rising
 pub mod vr;
+/// Unreal Tournament
+pub mod ut;
+/// Battlefield 1942
+pub mod bf1942;