cmake: Explicitly install fortran libraries only for Slicer on Linux and Windows
cmake: Explicitly install fortran libraries only for Slicer on Linux and Windows

On macOS, the libraries should be copied into the package by the fix-up
process.

bpaniagua/SPHARM-PDM,bpaniagua/SPHARM-PDM,NIRALUser/SPHARM-PDM,NIRALUser/SPHARM-PDM,NIRALUser/SPHARM-PDM,bpaniagua/SPHARM-PDM