mopro 3.0.0

First release of the rewrite for the new production of FACT simulations.

Core features and design:

peewee as ORM for the job database
Multiple executors for the jobs, currently implemented are SLURM and local processing
Support for multiple job databases via peewee, e.g. sqlite for testing or small local processings.
Automatic installation of CORSIKA / ROOT / Mars
Communcation between submitter and jobs using zeromq for tracking job state
Database schema: https://dbdiagram.io/d/5d14e2d5ced98361d6dc1ca7
Multple workers can work from the same job queue (database)
yaml config files

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