"final" standard service implementations

[PetrilloAtWork]

ICARUS is forced to copy the whole DetectorPropertiesStandard class in order to have a small custom change.

I think that fundamental "standard" classes should be allowed to be inherited from and modified.

lardataalg/lardataalg/DetectorInfo/DetectorPropertiesStandard.h

Line 36 in b2751d6

class DetectorPropertiesStandard final : public DetectorProperties {