Draft: cpack fix for analysis

This MR should in principle solve the issue encountered when using for instance the prun command with code compiled by analyzers.

With the recent changes !1009 (merged) concerning cpack, it was found that the tarball is empty and not containing anymore the code from the analyzer build directory when submitting for instance jobs to the grid with the prun command (which behind the scene calls cpack to build the tarball).

The reason is that the cpack_install.sh script (which is a copy of the cpack_install.sh.in) is now only called if the analyzer code was compiled with ATLAS_USE_CUSTOM_CPACK_INSTALL_SCRIPT set to to TRUE.
However, for analyses (i.e. all compilation not related to releases) ATLAS_USE_CUSTOM_CPACK_INSTALL_SCRIPT is set to FALSE (see athena!61972 (diffs)) as we would like to use a "cpack install script" that would not hide errors but instead would fail on errors.
The cpack_install.sh script cannot be use because it is hiding the errors.

In this MR 2 new script are precisely introduced to tackle that issue and to fail if an error occurs while including the code from the build directory to the tarball. Those script are

• cpack_install_failingOnErrors.sh.in which is almost the copy of the cpack_install.sh.in
• cpack_dbg_install_failingOnErrors.sh.in which is almost the copy of cpack_dbg_install.sh.in

The only change being the call of set -e instead of set +e.

Unfortunately, I could not test the changes myself because of my limited knowledge about including an external package and test it with AnalysisBase. I though manage to compile the current changes building AnalysisBaseExternals as a standalone project doing

CMAKE_VERSION="3.18.3"
GIT_VERSION="default"

PROJECT_NAME="AnalysisBaseExternals"

export ATLAS_LOCAL_ROOT_BASE=/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase
set +e
source ${ATLAS_LOCAL_ROOT_BASE}/user/atlasLocalSetup.sh -2
asetup none,centos7,gcc8
lsetup "cmake ${CMAKE_VERSION}"
lsetup "git ${GIT_VERSION}"
set -e
export LC_ALL=en_US.utf8

cmake -DCMAKE_BUILD_TYPE=Release -DCTEST_USE_LAUNCHERS=TRUE -S ./atlasexternals/Projects/${PROJECT_NAME} -B ./buildExt
cmake --build ./buildExt 
DESTDIR=./installExt cmake --install ./buildExt