Fix allCells in HcalHardcodeCalibrations.cc

allCells now returns all cells from both Version 0 and Version 1 HF
segmentations.
Fix detId2denseIdHT from HcalTopology.cc

detId2denseIdHT will now also map Version 1 HF segmentation results.
Version 0 (the per 2013 segmentation) is unchanged. The function now
returns -1 on error (previously it was not well behaved on failure).