Change how env vars are passed

[nickjer]

Instead of passing environment variables as:

qsub -v "TEST1=123,TEST2=321"

a better alternative may be...

TEST1=123 TEST2=321 qsub -v "TEST1,TEST2"

this would allow for more oddly formatted variables (has quotes, commas, or equals) that would probably fail in the former case:

export TEST1="inject,ANOTHER=variable"
export TEST2="321"

# This will work!
qsub -v "TEST1,TEST2"

[nickjer]

Note, I need to test the above, as the above is just an educated guess right now.

Implementation will be same how Slurm handles it:

https://github.com/OSC/ood_core/blob/a629283bd59cfc4d6dbebce79c0415094080d928/lib/ood_core/job/adapters/slurm.rb#L294-L296