Update sfc_climo gen to read scaled data sets

[sanatcumar]

Data sets may be scaled to reduce computational requirements but require the data to be rescaled to the right values for use in the model. This is a feature request to add an option to read scaled data sets in the UFS UTILS

[GeorgeGayno-NOAA]

@sanatcumar - which program are you updating?

[sanatcumar]

@sanatcumar - which program are you updating?
I added a subroutine in /sorc/sfc_climo_gen.fd/interep.F90 that reads the scaling parameter from netCDF metadata to do the scaling .