version was not increased after the last bug fix (so the updated version will currently not be installed with "pip install -U")

Before this patch there were several issues:
- The file would always be written (even if overwrite==False and file_copy==False)
- The file would always be copied if overwrite==False

This commit also improves the documentation to make clear what the function is supposed to do.

Use pathlib

As pathlib.Path.__init__ accepts both a string and Path-like objects we can
stay backward compatible and still accept strings.

Also Two functions are deprecated since they don't provide much readability
over the pathlib implementation.

3 remove broken links

Add GitHub action

Add safe rglob