Fix for lowercase Cyrillic letter Tse & Te Tse (and other fixes)

[VladWinner]

https://github.com/rsms/inter/pull/426/commits/40373cf07fd8c168a4b24e728598c3e89a33f55e Fix for lowercase Cyrillic letter Tse & Te Tse • The descender is ported from correctly constructed tetsecyrillic ҵ to tsecyrillic ц • (Display) Fixed vertical alignment of ц relative to other Cyrillic letters • (Display) Fixed lowercase Cyrillic letter Te Tse ҵ (composition)

#136 #233 can be closed as solved. This also partially solves the issues mentioned in #221 #314 #369

Before: After:

[VladWinner]

Added also https://github.com/rsms/inter/pull/426/commits/038c63e87bda60327f727809394b98e00569112d for fixing diamondwhite_x U+E000 italics (issue 415 can be closed as solved)

https://github.com/rsms/inter/pull/426/commits/681043188b4c05eb872baf91be8fc0c242847c49 & https://github.com/rsms/inter/pull/426/commits/59be65db0489527b5523c7c73a51eabb6fc59a38 are just temp/test commits (without changes)

[rsms]

Very nice. Sorry I haven't gotten around to checking this out until now.

Could you please rebase on latest rsms/inter@master as the source files have changed considerably.

Also you might want to consider using anchors so that the top-left bar and bottom-right tick stays in place in the future when base glyphs change.

[VladWinner]

Unfortunately, I don't have enough skills to recreate all these fixes on modified sources.

[rsms]

Equivalent changes were introduced in d36c9e2c532920f476ac460cc8dae06cb185b4ef Thank you for your help!