This PR implements the filesystem.chmod method from #6497.
* Implement filesystem.chmod
* Conditionally add pywin32 on setuptools versions that support environment markers.
* Update apache plugin requirements
* Use a try/except import approach similar to lock
* Add comments about well-known SIDs
* Add main command
* Call filesystem.chmod in tests, remove one test
* Add test for os module
* Update environment marker
* Ensure we are not building wheels using an old version of setuptools
* Added a link to list of NTFS rights
* Simplify sid comparison
* Enable coverage
* Sometimes, double-quote is the solution
* Add entrypoint
* Add unit tests to filesystem
* Resolve recursively the link, add doc
* Move imports to the top of the file
* Remove string conversion of the ACL, fix setup
* Ensure admins have all permissions
* Simplify dacl comparison
* Conditionally raise for windows temporary workaround
* Add a test to check filesystem.chown is protected against symlink loops