Correct RICH geometry v21a (#2425)

In the input repository many files for the media checks were added. In the geometry repository the rich geometry v21a was corrected. The geometry now has the correct name and the correct radiation length of the materials.

In the macro Import_GDML_Export_ROOT.c which is used to convert the GDML geometry into a ROOT geometry the following changes were done.

Use the correct TGeo unit system. Use TVolume->Export to store the RICH volume in the ROOT file. Add the correct placement matrix according to the shift of the coordinate system. Also create the file needed for the media check. Create all needed materials prior to the import from the gdml file such that they are properly exported to the ROOT file.

changed milestone to %DEC21

added BugFix Geometry labels

mentioned in merge request !714 (closed)

For reference. This MR supersedes !714 (closed).

mentioned in merge request !716 (merged)

Should I wait for the green light from @s.lebedev ? or were the uncertainties from the superseded MR already resolved (as it seems from the comments in the redmine issue)?

Dear @f.uhlig, @s.lebedev,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

MR is fine with me. It can be merged.

The problem occurs only if I create geometry by myself. One more thing to be done is the changes in extrapolation Z position.

resolved all threads

merged

added Ported label