Steam API integration (Windows)

As the title suggest, after months of trouble-shooting, we have implanted the steam API into the game! However, this only applies to windows users as Linux is proving to be a much more touchy subject.

You can also toggle Fullscreen mode by pressing F11. However, this does not override the setting in the option menu.

This patch also features fixes for several game/Sequence breaking bugs such as infinite Loading and being able to open "Reversed" Doors at the wrong angle.