[PR199 update] DEE Shield Readout module - from energy to ADC for the shield hits

[vfioretti]

This is an update for PR #199, that was closed because of conflicts with the master branch.

This PR modifies the following files:

GUI configuration to read the calibration file:

• modified: include/MGUIOptionsDEESMEX.h
• modified: include/MModuleDEESMEX.h
• modified: src/MGUIOptionsDEESMEX.cxx

I added the ability in MReadOutElementVoxel3D to also map the detector/crystal ID with the detector and crystal ID listed in the calibration file:

• modified: include/MReadOutElementVoxel3D.h
• modified: src/MReadOutElementVoxel3D.cxx

new DEE submodule (Shield Readout) to convert from energy to ADC the shield hits:

• modified: src/MSubModuleShieldReadout.cxx
• modified: include/MSubModuleShieldReadout.h

A new file (energy to ADC calibration parameters) is added in resource/dee/ShieldEnergyCalibration_NRL.csv

Changes from PR #199:

• ...ShieldReadoutFilename... moved to ShieldEnergyCalibrationFilename... for clarity
• dead code removed (see this comment)
• using false instead of ! (see this comment)

On this comment on include/MReadOutElementVoxel3D.h:
using bool without virtual in
bool operator<(const MReadOutElementVoxel3D& R) const;
is correct, because it only needs to order between two MReadOutElementVoxel3D objects, while
virtual bool operator==(const MReadOutElement& R) const;
should be able to compare any readout element from the derived class.

[vfioretti]

@ckierans this PR replies to the reviewed PR #199 (closed because of conflicts)