[sfnt] Support 'COLR' v1 variable `PaintVarScale*`.

* src/sfnt/ttcolr.c: (FT_PaintFormatInternal): New enumeration values
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE`,
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_CENTER`,
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_UNIFORM`, and
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_SCALE_UNIFORM_CENTER`.
(read_paint): Handle new enumeration values.
1 file changed