[feature request] virtual keyboard support.

[01micko]

Needed? Probably not. Nice to have? Certainly one day.

https://gitlab.freedesktop.org/wlroots/wlroots/-/blob/master/protocol/virtual-keyboard-unstable-v1.xml

[Consolatis]

same for virtual pointer. Both would be nice to extend labwc with a virtual screen which can be controlled by a VNC client via wayvnc.

[fictitiousexistence]

Unable to use "wtype" program. Get the error message "Compositor does not support the virtual keyboard protocol".

Am able to use ydotool but it doesn't work properly for certain characters.

[johanmalm]

Implemented by PR #570