Add 2D hit/hole/dead validation maps to InDetPhysValMonitoring
This MR adds support for high-granularity 2D plots of the Hit/Hole/Dead/ExpectedHit distributions to InDetPhysValMonitoring. The changes are intended to support the validation of the pixel masking updates before the Run-2 reprocessing. Only small (few MB) increase in vmem and output size, hence not adding a dedicated flag to steer these plots.
While implementing, replaced a multi-duplicated booking method by a template.
CC @sroe @goetz @vcairo @npetters for info / feedback. Also CC @schsu @mamolla @keli - it would be great if we could monitor these plots in the context of PhysVal and ART once this is merged.