2023.08.07 AGAP Mode on compiled files

 Update Header.s bank load to handle AGAP color mode ( 256 colors AGA ) from Bank that are inside executable (Bob/Sprite/Icon)
 Previous update also fix Get Bob/Sprite/Icon Palette commands when program is compiled.
 Update CompExt.s compiler extension for squashed programs to handle AGAP color mode (Bob/Sprite/Icon)