grim/guifications3

59b11e0f9116
start of converting gflib-ui/tests/testcolor.c to gtester

refs #674
gflib-ui/gf_color.c
gflib-ui/gf_drawable.c
gflib-ui/gf_font.c
gflib-ui/gf_gc.c
gflib-ui/gf_item.c
gflib-ui/gf_item_image.c
gflib-ui/gf_item_shape.c
gflib-ui/gf_notification.c
gflib-ui/gf_primitives.c
gflib-ui/gf_theme.c
gflib-ui/gf_theme_info.c
gflib-ui/gf_theme_options.c