Test if constant values need to be transferred from grid to column and back

[SnowHydrology]

Noah-OWP-Modular has some constant variables that go through the same transfer process as the time-/space-varying variables. Test if this still needs to be done. If not, remove variables from the transfer routines that occur each timestep.

Example:

noah-owp-modular/src/ParametersGridType.f90

Line 81 in a39c372

real :: TFRZ ! freezing/melting point (k)

Related to #5

[GreyREvenson]

@SnowHydrology, I believe this issue was mostly addressed by PR #82 though I think we could further reduce unnecessary transfers by implementing the ConstantsModule (i.e., Issue #5). Would you recommend closing this issue or do you see value in keeping it alive?