First round of PUMAS CCPP changes

[cacraigucar]

Originator(s): nusbaume, cacraig

Description (include issue title and the keyword ['closes', 'fixes', 'resolves'] and issue number):

• First round of CCPP changes for CCPP-ize PUMAS #118

List all namelist files that were added or changed:

List all files eliminated and why:

List all files added and what they do:

List all existing files that have been modified, and describe the changes:
(Helpful git command: git diff --name-status development...<your_branch_name>)

List all automated tests that failed, as well as an explanation for why they weren't fixed:

Is this an answer-changing PR? If so, is it a new physics package, algorithm change, tuning change, etc? No

If yes to the above question, describe how this code was validated with the new/modified features: