Provide some options for machine dependent "preparations".

[d-krupke]

Some machines need specific preparations before a job can be run. Provide some simple functionality to run some local preparation code, if it is available. This could look like this:

• Add a local_setup() function at the beginning of your script.
• This function checks if a ~/.pythonrc.pyexists and execute it if it exists.

The important use case for us is to set up the Gurobi-license, which is individual for every workstation. We usually do this via the .bashrc resp. .zshrc but this is not executed when using slurm.

[d-krupke]

Can now be done via node_setup. This function can be anywhere in the imported code, thus, enabling simple setup e.g. by just importing a custom package import ibr_alg_utils.