Adding reflecting fluxes to Solar load radiation model.
Adding functionality to the boundary radiation models and new
place holder for basic wall types such as transparent, opaqueDiffusive,
opaqueReflective,etc.
Changing radiation wall models to run time selectable.
Adding multi-band capabilities to VF model and improving the set up
for using solar loads in VF and fvDOM radiation models.

- also cleanup by using 0.orig/ directory.
- use foamListRegions to obtain region names

- A few without a 'cd' at the start.
  Use $(getApplication) directly in more places (for clarity).

- A few without a 'cd' at the start.
  Several remove files that are already covered by the cleanCase function.