Coldtype-fontgoggles

- [designspace] Fixed issue with composite glyphs not rendering correctly if a
base glyph uses a support layer. [Issue 53](https://github.com/justvanrossum/fontgoggles/issues/53)

- Fixed minor UI glitch: update available language tags after reload.
- Update the used Unicode database to 12.1.0
- Work around related Unicode bidi problem. [Issue 49](https://github.com/justvanrossum/fontgoggles/issues/49)

- Added View -> Show/hide Font File name menu. [Issue 39](https://github.com/justvanrossum/fontgoggles/issues/39)
- Sort fonts that are dropped onto a window the same way as when they are dropped
onto the application. [Issue 46](https://github.com/justvanrossum/fontgoggles/issues/46)
- Small layout improvements. [PR 45](https://github.com/justvanrossum/fontgoggles/pull/45)
- GSUB feature tags now have a contextual menu (control-click or right-click)
that allows the "alternate number" to be specified. This is useful for features
that expose multiple alternates. [Issue 42](https://github.com/justvanrossum/fontgoggles/issues/42)
- Fixed Script override for script codes that are different between OpenType and
ISO-15924. For example, when a font has `mym2` as a Script, it would render
incorrectly if the user actually selected `mym2` as a Script override. Thanks
to Ben Mitchell for reporting this.

- One! Oh! Let's go!
- Sort axis sliders more logically: sort registered axes first, then
by name.
- The Unicode Picker can now show more than 500 search results.

- Added “Reset all axes” button to Variations panel.
- Deal better with different default axis values when multiple fonts are
being viewed.
- Improved shift-click behavior in the font list

- Be smarter about multi-font glyph selection if fonts behave the same and
use the same glyph names, as is usual within a family.
- Show stylistic set names when possible. If multiple fonts are loaded and
they don't have matching names for a stylistic set, a generic "\<multiple
names\>" is shown.