master
added test scripts for geometry checks for sub-detectors only
Some changes made for testing big xml from DDD
Correct a cfi file to make a suucessful run of the overlap code
DD4hep migration for DB payload tester
Investigate the solids produced through ddd and dd4hep for HGCal versions D98 and D99
Modify the scrpts to get geometry statistics for phase2 scenarios
Avoid the crashes in some sample jobsof SimG4Core/PrintGeomInfo
address issue 33373
Snapshot of CMSSW_6_2_0_pre8.