Proposed removal of 'gscreen/silverdragon' simulation config in master

There is discussion about removing the 'sim.gscreen.silverdragon' simulation config in master as it fails on load with Gtk related errors on current debian bookworm installations as well as RIP installation of both 2.9.x and master.
So, if anybody has actually managed to run the 'sim.gscreen.silverdragon' simulation config in 2.9.x please drop a note. github.com/LinuxCNC/linuxcnc/issues/3094
Thanks

I have managed to run it. But it took some work.

I plan to update the others in the same way tomorrow.

It's mainly a case of loading the ui into a newer version of glade and then re-saving.