Merge remote-tracking branch 'origin/feature/8173_remove_ILLines'
Merge remote-tracking branch 'origin/feature/8174_remove_ForCE'
Merge remote-tracking branch 'origin/feature/4218_algs_as_python_methods'
refs #8197. Move scripts to new package.

Also update unit tests and other consumers of these scripts.
Merge branch 'feature/8197_refl_package' into develop