0.0.3 pre-alpha

0.0.3 pre-alpha

With working example to change screen color.

Changelog:

• added support for vSync (use frame rate of your monitor)
• added thread safe class Color
• added support to set clear color for window
• added support to clone Color
• make it easier to get window in game state
• added support to check if key is pressed very easy in window class
• added working example