Refactored the supported game types logic to load external assemblies in it's own static class.
Moved the XElementExtensions from Procon.Core.Utils to Procon.Net.Utils. This will probably be moved later to Procon.Utils
Refactored the game config so it uses the same deserialization as other xml files. Allows for games to extend the GameConfig loaded data, loading and executing of the config. Fixes #6