Add test files and option for the output directory for the sif file

Add option to allow the user to specify an output directory where the
Singularity image file is stored. The default is the current directory.
Add test files (first draft) which should be run in the after build section
of the GitLab CICD yaml file.
1 job for master in 2 seconds (queued for 2 seconds)
latest
Status Name Job ID Coverage
  Build
failed build1 #4634

00:00:02

 
Name Stage Failure
failed
build1 Build
sbatch: error: AssocGrpSubmitJobsLimit
sbatch: error: Batch job submission failed: Job violates accounting/QOS policy (job submit limit, user's size and/or time limits)
Running after script...
$ echo "After script section"
After script section
$ sbatch ./runtest.sh
sbatch: error: AssocGrpSubmitJobsLimit
sbatch: error: Batch job submission failed: Job violates accounting/QOS policy (job submit limit, user's size and/or time limits)
ERROR: Job failed: exit status 1