FindCLHEP Fix, 1.0 branch (2020.09.18.)
This updates FindCLHEP.cmake
to set up a different RPM dependency for LCG releases before and after LCG_97. As the LCG RPM changed its name starting with that release...
Unfortunately athena!36448 (merged) resulted in an "un-installable" AthAnalysis RPM because of this omission.