Key_Jacker, Widescreen Stretching, wcdx.ini settings

[ActingBadly]

• Frame limiter to cap the max framerate at 30 FPS to fix cutscenes running too fast in Wing Commander 2.
• Fixed mouse up acting as a mouse click.
• Ability to change space framerates to maintain 15, 20 or 30 fps in space combat. (Wing Commander 2)
• Merged key_jacker to inject low-level keyboard, mouse, joystick signals and Xinput blocking.
• Added key re-routing and initial Xbox controller input mapping.
• Widescreen stretching. (16:9, 16:10 and original 4:3)
• wcdx.ini to save and load settings.
• Push_Byte to inject code into the game while it is running to modify values. (Used to hide mouse courser and Space Combat fps changing)

[Bekenn]

Thanks for the PR! I'd like to split this up into distinct changes that can be reviewed individually.