CRADL Machine Learning Proxy Spackage (#18668)

* Initial CRADL Spackage Work

Currently resolving ```--single-version-externally-managed``` error

* Fixed GPUtil Issues

Thanks to Vinay Ramakrishnaiah for overwriting install

* Finished CRADL Install Function

Finished CRADL install function which is basically copying the scripts
to the install directory. Also resolved flake8 issues for PR purposes