Removed SDL fallback for HaikuTTF.
Reimplemented cThread and cMutex without SDL.
Disabled ClipTo() function for the UI Controls ( testing, i don't event remember why that was there ).
Implemented a function to set menu position always inside the screen.
Control Flags are now in enums instead of defines.
Added Icon possibility to cUIPushButton.
Added default fonts for ui themes and global default font for all ui themes.
Changed how cUIGfx get shapes, now accept a new instance without shape.
Fixed how padding works on cUITextBox and cUITextInput.
Fixed font rendering in cTextCache when some text rendered with angle or/and scale ( it was breaking the model view matrix ).
Fixed a miscounting of the number of vertex for the cached text.
Fixed HaikuTTF destroy singleton ( now release fine the memory ).
