Add CLI for slurm configuration

[nefrathenrici]

This PR adds a command line interface for setting the slurm configuration of the pipeline.

This has the following help message:

Usage:
    ./pipeline.sh [options] experiment_id

Options:
    -t, --time=HH:MM:SS: Set max wallclock time (default: 2:00:00).
    -n, --ntasks:        Set number of tasks to launch (default: 1).
    -c, --cpus_per_task: Set CPU cores per task (mutually exclusive with -g, default: 8).
    -g, --gpus_per_task: Set GPUs per task (mutually exclusive with -c, default: 0).
    -h, --help:          Display this help message.

Arguments:
    experiment_id:   A unique identifier for your experiment (required).

Other content

• Moves all sbatch files into slurm/
• Moves pipeline.sh and pipeline.jl to the toplevel of the repo
• Update docs

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.95%. Comparing base (f4b476a) to head (c941577).

Additional details and impacted files

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