reverting the files commands from python to bash

[JoshuaUrrutia]

The files-* commands were re-written in python, this reverts those changes back to the bash version of the files-* commands ## Description Removed files-cp/mv/rm and replaced all the other files commands with the previous bash version ## Motivation and Context - [ ] I have raised an issue to propose this change (required) ## How Has This Been Tested? Yes, tested in a container: docker run --rm -it jurrutia/agave-cli:files-revision tested files-list, files-pems-list Will run further tests when $WORK file system is back online ## Types of changes

• [X ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ X] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have signed-off my commits with git commit -s
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[JoshuaUrrutia]

files-delete, files-upload, files-pems-update, files-mkdir all working as expected