Refactoring + static exe + exec refactor + bug fixes

.gitlab-ci.yml

Installer.py

JSONAccountManager.py

core/authentication/JSONManager.py

core/job.py

core/modes/__init__.py

core/modes/base.py

core/modes/common.py

core/modes/slurm/__init__.py

core/modes/slurm/batch.py

core/modes/slurm/shared.py

core/modes/slurm/singularity.py

core/modes/slurm/srun.py

core/modes/ssh.py

core/utility/defines.py

core/utility/executor.py

driver.py

requirements.txt

settings/__init__.py

utility/.gitlab/.localTemplate.yml