Move PeleRad source files to PelePhysics

[jrood-nrel]

Tasks:

• Remove std::filesystem
• Add existing tests

[marchdf]

when we merge can we add "Co-authored-by: Wenjun Ge [email protected]" to the commit message? That way we know who to bug for certain files ;)

[baperry2]

@wjge pointed out that he set up some unit tests for radiation. Can we port those over as well?

[wjge]

These six tests are needed:

tstPOneMulti.cpp
tstPOneMultiAF.cpp
tstPOneMultiEB.cpp
tstPOneSingle.cpp
tstPOneSingleAF.cpp
tstPOneSingleEB.cpp

The boost test stuff can be replaced by what Pele is using.

[jrood-nrel]

Yes. Currently I need to debug why moving these files causes SootRadTest to fail.

[baperry2]

When I initially added that test to PeleLMeX, I had some mysterious failures that ended up being that it wasnt reading the kp data files correctly, so I'd recommend double checking that