Made the Setting class much more customizable by adding the SettingEntry class. Adopted demos to the changes Note: Setting ScreenWidth and ScreenHeight are now combined into ScreenResolution of format <width>x<height> FullScreen and PlaySounds are now of type bool

{
	'opengl': ['core/video/opengl/', 'core/gui/base/opengl/'],
	'zip': ['core/vfs/zip/'],
	'script-python': ['swigwrappers/python'],
	'script-lua': ['swigwrappers/lua'],
}