- Added gem layer structure
 - Added support module and ability to change the module component TRD
 parameters from the default envelope values.

	modified:   compact/gem_tracker_endcap.xml
	modified:   src/TrapEndcapTracker_geo.cpp

 - CylinderTrackerBarrel_geo can be used to define detailed modules
 which are then placed in barrel array.
 - The modules are cylindrical segments of a tube.
	modified:   compact/definitions.xml
	modified:   compact/gem_tracker_endcap.xml
	new file:   compact/mm_tracker_barrel.xml
	modified:   reference_detector.xml
	new file:   src/CylinderTrackerBarrel_geo.cpp

 - Uses the TrapEndcapTracker geometry construction
 - Material thicknesses needs attention.

	modified:   ../reference_detector.xml

 - Vertex tracker endcaps are simple disk trackers.

Dmitry Romanov authored 3 years ago and Whitney Armstrong committed 3 years ago

	modified:   reference_detector.xml

	modified:   compact/definitions.xml
	new file:   compact/forward_romanpot.xml
	modified:   reference_detector.xml

	new file:   compact/B0_tracker.xml
	modified:   compact/definitions.xml
	modified:   reference_detector.xml
	new file:   src/ref_RectangularTracker_geo.cpp

 - Currently just a volume  containing air.

 - Added some fudging numbers for ecal endcap z positions. Should fix
 this in the future..

 - The endcap and barrels were added.

Squashed commit from Marshall

	new file:   ci_GEM.xml
	new file:   compact/ci_GEM.xml
	new file:   compact/ci_HCAL.xml
	modified:   compact/definitions.xml
	modified:   compact/display.xml
	modified:   compact/materials.xml
	modified:   reference_detector.xml
	modified:   src/cb_CTD_Si.cpp
	new file:   src/ci_GEM.cpp
	new file:   src/ci_HCAL.cpp

	modified:   compact/definitions.xml

	modified:   compact/definitions.xml
	modified:   compact/ecal.xml

	modified:   compact/definitions.xml

	modified:   compact/definitions.xml
	modified:   compact/ecal.xml

	modified:   compact/definitions.xml

	modified:   CMakeLists.txt
	modified:   compact/definitions.xml
	modified:   compact/ecal.xml

	new file:   compact/forward_rich.xml
	modified:   reference_detector.xml
	new file:   src/ForwardRICH_geo.cpp

	modified:   reference_detector.xml

	new file:   ../src/cb_EMCAL.cpp

	modified:   compact/definitions.xml
	modified:   compact/refdetector_defs.xml
	new file:   compact/solenoid.xml

	renamed:    elements.xml -> compact/elements.xml
	renamed:    materials.xml -> compact/materials.xml
	modified:   reference_detector.xml