[truetype] Relocate color compensation.

The rounding color compensation, which is not used by FreeType, belongs
to GS. This is a more logical place for it, next to round_state.

* src/truetype/ttobjs.h (TT_GraphicsState): Move compensations here...
(TT_Size_Metrics): ... from here.
* src/truetype/ttobjs.c (tt_size_init_bytecode): Updated.
* src/truetype/ttinterp.c (tt_default_graphics_state): Updated.
(Ins_ROUND,NROUND,EVEN,ODD): Updated.
(Round_*): Updated.
3 files changed