When running the Dart.sh script normally all available cores are used which
works well in most cases. Up to now it was possible to limit the number of
used cores by defining the environment variable NCPU which was used for the
build as well as the test stage. Depending on the system this resulted in a
large number of tests which ran into timeouts which were not seen when running
the tests sequentially. With this commit it becomes possible to limit the used
cores during the test stage independently. This is done by defining the
environent variable NCPU4TEST.

Before the change it was necessary to define an environment variable to switch
between different test suites like for example the Experimental or Nightly
tests. Now the test suites are chosen by the CMake command line parameter
CBM_TEST_MODEL. These are Experimental, Nightly and Weekly which differ by the
number of executed tests.

Inserts the declaration on the 1st or 2nd line of scripts.

EMPTY LINE

Short license declarations for .sh files

Inserts the declaration on the 1st or 2nd line of scripts.

EMPTY LINE

Revert "Short license declarations for .sh files"

This reverts commit d3dd8608.

Uses SPDX identifier

Modifies declaration to use SPDX license identifier syntax

Corrects file

Empty line before hashbang removed

Pipeline now fails also in case of failing tests.
New CI option MergeRequest for Dart.sh wrapper which creates a special CDash label.
Use new CI option when GitLab CI runs for a merge request.

This version is an exact copy of the last revision of the trunk branch
of the old SVN repository of CbmRoor at
https://subversion.gsi.de/cbmsoft/cbmroot/trunk
The old SVN repository will still be available for read access.