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Implementation of realistic geometry, gas mixture, and material budget for GEM chambers in LMVM geometry

Corrects internal name of top vol.

This geometry is a shifted copy of v16e_1e and is the same as tof_v20a_1h.

and the magnet root geometry without unwanted internal translations.

Hard coded translation in CbmMagnet.cxx in cbmroot repository may be safely removed at later date.

translation of TOF and PSD downstream.

We don't want to have files with dos CRLF line endings in the repository,
so we test if any of the changed files has this file type.

v20a places PSD at position 10.5m and 12.95cm in z and x displacement with 0.0132 rotation round the y-axis which is consistent with a compact electron setup with a 1.1m BFTC at 12 AGeV/c

v20b places PSD at postion 11.1m and 13.75cm in z and x displacement with 0.0132 radians rotation round the y-axis which is consistent with a compact muon setup including its 5th absorber with a beam at 12 AGeV/c and a BFTC of 1.1m.

Three files created with their most compact placements for the Hadron, Electron and Muon setups.

For more details see commit of the macro into cbmroot

Add correct composition for steel used in beampipe for mCBM.

Source: Acidur 4301 Werkstoffdatenblatt X5CrNi18-10 1.4301

- Adds magnet_v20[a-b] derived on magnet_v18[a-b] through a translation.
=> This removes the need to have an undesired transformation in CbmMagnet.cxx.

Use geometry tof_v16e instead of tof_v16d. The geometries are identical
except for a difference in the numbering. Due to some planned changes in
the tof addressing scheme a new module type has to be added such that the
number of modules of the same type stays below 128.

Add STS v19q geometry, optimising the gaps in z between ladders with less than 10 sensors, refs #1746

Use pipe v20a_1m and much v20a_sis100_1m geometries. Refs #1735 @20m

Add geometry root file and corresponding info file.
Requested in Refs. #1732 @5m

Add geometry root files and corresponding info files.
Requested in Refs. #1735 @5m

Refs #1735 @15m

The carrier medium of the 1st station of the vx (vertexing)
geometries should be CVD diamond. This material/medium
was introduced in a previous commit but erroneously not
used up to now. This commit fixed this.

Some heat sink volumes had random integer values
in their volume name due to an uninitialized integer
variable in the macro creating the geometries.

Except for the changed volume names, the content of
the geometry files is identical to the previously
submitted version of v20{a,b,c}_{tr,vx}.