Initial working version of job scripts for September 2023 tutorial

# Please enter the commit message for your changes. Lines starting
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# On branch master
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# Initial commit
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# Changes to be committed:
#	new file:   init_parallel.pbs
#	new file:   init_real.pbs
#	new file:   run_model.pbs
#	new file:   script.pbs
#	new file:   supercell.pbs
#
