FIX: merge format_convert.py into format_parser.py
format_convert.py --> format_pack.c.mako --> pack_ubyte_*

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
format_convert.py --> format_pack.c.mako --> pack_uint_*

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
format_convert.py --> format_pack.c.mako --> pack_float_*

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
format_convert.py --> format_unpack.c.mako --> unpack_float_* and unpack_ubyte_

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
FIX mesa: fix autogeneration of MESA_FORMAT_A2R10G10B10_UNORM pack/unpack functions

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>