LArGeoEndcap: Fix cppcheck warnings.
EndcapCryostatConstruction manages memory. Delete copy ctor/assignment. Redundant string->char* conversions. Use starts_with rather than find. Prefer preincrement for iterators.
EndcapCryostatConstruction manages memory. Delete copy ctor/assignment. Redundant string->char* conversions. Use starts_with rather than find. Prefer preincrement for iterators.