This tag is for the "CHEP" release, which aims to fix little problems with fullSimLight/FSL ahead of the CHEP conference May 8-12 in Norfolk Va.

* Configuration of HEPMC3 & Pythia in make is rationalized.
* Pythia/HEPMC3 options grayed out if not available.
* Crash of fsl on Ventura platforms fixed.
* Unphysical values of materials in KitchenSinkPlugin corrected
* New functionality in GeoModelXML

From 4.4.2:

* Introduce mechanism in GeoModelXML to pass readout geometry tables through to sqlite
* Also, create a FullPhysVol table and an AlignableTransform table in GeoModelXML, pass through to sqlite
* Fix a bug in GeoModelWrite leading to spurious (Full)PhysVols upon restore.
* Inhibit vectorization where it is unsafe (Scott's fix)

From 4.4.3:
* fix a compilation problem with FSL on somewhat older distributions of Qt.

* Introduce mechanism in GeoModelXML to pass readout geometry tables through to sqlite
* Also, create a FullPhysVol table and an AlignableTransform table in GeoModelXML, pass through to sqlite
* Fix a bug in GeoModelWrite leading to spurious (Full)PhysVols upon restore.
* Inhibit vectorization where it is unsafe (Scott's fix)

This is a patch tag to fix the FullSimLight and FSL single-builds. It also lets users disable HepMC3 support.

In particular, this patch tag:

* fixes the build of the FullSimLight and FSL sub-packages when built as top-tree packages on top of the other GeoModel packages. This is needed to successfully build the GeoModel distribution kits, such as the Homebrew 'bottles' for macOS.
* introduces a new CMake option to FullSimLight, to let users disable the dependency on the HepMC3 exchange data format, if not needed or not installed. The use of the new flag also disables the FSL GUI element related to the HepMC3 input.

This tag rolls up multiple developments over the summer.  These mostly involve fullSimLight and its graphical user interface, FSL, which has now reached a high level of maturity.  They also involve gmex, which has been enhanced with additional features allowing the visual examination of fullSimLight output. 

FullSimLight/FSL updates:

* All of the ATLAS-specific functionality hardwired into fullSimLight has been moved into plugins.
* The ATLAS-specific plugins (mag field, LarCustomSolid) have been moved to a submodule (geomodelatlas/ATLASExtensions)
* FullSimLight/FSL now takes HepMC3 input
* FullSimLight/FSL now inputs physics list plugins.
* FSL interface streamlined, selections are now displayed in the interface.
* The possibility to change fullSimLight behaviour by editing macros through the gui, judged too confusing, is removed.
* Several "dummy" plugins, serving as examples, are provided.
* Plugins to write out hits and/or tracks are provided. Output in HDF5 format. 

gmex:

* visualization of G4 hits and G4 tracks provided.

Removed printouts from GeoModelKernel/GeoVolumeTagCatalog.h

Adding back the torus, elliptical tube and twisted-trapezoid to GeoModelXML

Identical to 4.2.5 except with correct SONAME on the shared libraries. This is necessary for Ubuntu releases.

GeoModelXML updates, reduced verbosity in tools

Same as 4.2.3, but with proper SONAMES on the shared libraries.

Many updates in Tools, Visualization, and FullSimLight.

This tag 4.2.2 fixes the wrong lib SO name in tag 4.2.1

GeoModelXml is now in GeoModelTools

"Quarterly" release

Include the Transform/Eigen fix (to fix the so-called "Flatland" bug)

Fix the dependency on Eigen3, removing the CMake "EXACT" flag.