* xfconf: changed implementation to use cmd_runner
* added module_utils/xfconf.py
* xfconf_info: using cmd_runner
* added module_utils to BOTMETA.yml
* added changelog fragment
* use cmd_runner_fmt instead of deprecated form
(cherry picked from commit 8ba3d94740)
Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>