Log Message:
modular-xorg-server: update to 1.20.0.

1.20.0

Lots of Present, DRI3 modifier, and buildsystem fixes. Thanks to
everyone who contributed to this release!

1.19.99.905

More bugfixes, and streams support for Xwayland. This will almost
certainly be the last RC.

1.19.99.904

Another batch of cleanups and fixes, mostly in glamor and DRI3.

At this point the only outstanding major feature for 1.20 that hasn't
landed yet is EGLStreams support for Xwayland. The patches require some
minor rebasing to account for per-window flips in Present, I'll post
that momentarily I suppose. I'm honestly of two minds about merging it,
the deafening silence of review feedback has not been encouraging.

1.19.99.903

Fixes for meson, modesetting, and a crash I introduced right before RC2.

1.19.99.902

This merges the DRI3 1.2 support (with an asterisk) and per-window
flips for Xwayland, along with the usual collection of miscellaneous
fixes. In particular the meson build is much closer to production-
ready. The asterisk for DRI3 is that the modesetting driver has some
known issues still, so the code to enable planes and modifiers is
hidden behind an xorg.conf option:

Section "ServerFlags"
    Option "Debug" "dmabuf_capable"
EndSection

Thanks to all for testing and debugging.