Add libdecor and various libxcb utils
Add libdecor for wayland client apps to use for window-decorations (eg. blender) and missing libxcb libs for standalone Qt X11 apps (eg. gaffer).
Fixes #133 (closed) and #134 (closed)
Add libdecor for wayland client apps to use for window-decorations (eg. blender) and missing libxcb libs for standalone Qt X11 apps (eg. gaffer).
Fixes #133 (closed) and #134 (closed)