Signed-off-by: Peter Stadler <peter.stadler@student.uibk.ac.at>

This is a dependency for django-cors-headers.

Install sqlformat without using pkg-resources:
Upstream uses the entry_point function to call the __main__.py script.
We copy it for avoiding the dependency on pkg_resources and full python3 in turn.

Signed-off-by: Peter Stadler <peter.stadler@student.uibk.ac.at>