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.
Support the following expansions when they occur at the start of a
string:
Short-form Equivalent
========= ===========
<etc>/ ~OpenFOAM/ (as per foamEtcFile)
<case>/ $FOAM_CASE/
<constant>/ $FOAM_CASE/constant/
<system>/ $FOAM_CASE/system/
These can be used in fileName expansions to improve clarity and reduce
some typing
"<constant>/reactions" vs "$FOAM_CASE/constant/reactions"
