Log Message:
Update to 0.12

Upstream changes:
0.12 2018-08-12 dmol@cpan.org
 - Fix MANIFEST

0.11 2018-08-11 dmol@cpan.org
 - Added FT_LOAD_COMPUTE_METRICS load flag (HinTak)
 - Added face->foreach_glyph method for iterating over all glyphs
   (some of them don't necessarily have a unicode point) (HinTak)