* Add sanity test (currently fails).
* doc_fragments can also be non-GPLv3+.
* Replace 'Author:' by 'Copyright:' in some specific cases.
* Avoid matching string for license checkers.
* Reformulate not to throw license detection off.
* Add PSF copyright notice for plugins/module_utils/_mount.py.
* Add generic copyright notices.
* Update changelog fragment.
* Move licenses to LICENSES/, run add-license.py, add LICENSES/MIT.txt.
* Replace 'Copyright:' with 'Copyright'
sed -i 's|Copyright:\(.*\)|Copyright\1|' $(rg -l 'Copyright:')
Co-authored-by: Maxwell G <gotmax@e.email>