Removed pixel copy function
Removed unused texture format translator
Added static function for creation of empty gpu images
Fixed some variable names
Added creation of YUV420Semiplanar
Added mapping for YUVPlanar, YUVSemiplanar and UV
Changed variable names
Added class for format UV
Renamed class/file
Added static function for creation of empty image
Changed names to incldue correct access specifier
Changed names to incldue correct access specifier
Updated use file
Updated test file