Added gbitmap_create_with_palette
Added gbitmap_create_with_palette

The  new function replaces gbitmap_colour_manipulator, and allows easier update of colors.
ToDo:
1. Complete updating user colors by settings page. (update my_palettes by user preference)
2. Remove bitmap_colour_manipulator
3. update wscript to newer one.
orviwan/91-Dub-v2.0,orviwan/91-Dub-v2.0,orviwan/91-Dub-v2.0,orviwan/91-Dub-v2.0