split xwayland from xorg-server

[paper42]

General

• This is a new package and it conforms to the quality requirements

Have the results of the proposed changes been tested?

• I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
• I generally don't use the affected packages but briefly tested this PR

xwayland releases were recently split from xorg releases. This PR works well on my system, but some parts should be improved.

@leahneukirchen you are the maintainer of xorg-server, do you want to maintain xwayland too? or @ericonr? (maintainer of wayland)

TODO:

• fiigure out depends=
• solve file conflict with xorg-server (/usr/lib/xorg/protocol.txt)

[ericonr]

I would suggest naming the new package xorg-server-xwayland (so you just revbump xorg-server and remove the subpackage from there), it should make for the easiest transition. I'm not sure renaming to xwayland is necessary, but I can be convinced otherwise.

Is the new package picking up updates correctly? It might need an update file.

You can put me as maintainer, if you don't want to do it yourself.

Haven't looked at the contents of the conflicting file, but my gut reaction is to rm it from xwayland.

[paper42]

• renamed the package back to xorg-server-xwayland
• added a new subpackage xorg-server-common which provides the conflicting file (protocol.txt). This is neccessary because xorg-server-xwayland doesn't depend on xorg-server, but still needs the file.
• I will take the maintainership