Add support for BGRA glyphs and scaling

[Daan W.]

Not sure if the maintainers here are aware of this, but libxft2 has been misbehaving with emoji for a while. The result is that e.g. st (the terminal emulator) and gitk crash immediately when trying to render emoji. Very annoying.

There's an upstream PR in the works here:
https://gitlab.freedesktop.org/xorg/lib/libxft/-/merge_requests/1#note_567035
It is not merged upstream yet and does seem to need another push to do so.

This persisted for me through an upgrade from 20.04 to "rolling rhino" and people in that thread report it for the 18. and 19 series too.

I'm not in a position to contribute code to this, sadly. I barely understand what this is all about. But it is an annoying user facing bug so I figured it'd be better the Ubuntu maintainers be aware of it.
Sorry if this is already being handled, I couldn't find any matching reports here yet.

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please answer these questions:
* Is this reproducible?
* If so, what specific steps should we take to recreate this bug?

This will help us to find and resolve the problem.

[Launchpad Janitor (janitor)]

[Expired for xft (Ubuntu) because there has been no activity for 60 days.]