[Enhancement]: Allow custom bad pixel masks in S1

[erinmmay]

Instrument

NIRSpec (Stages 1-3)

What is your suggestion?

Just like the title: allow users to supply custom bad pixel mask in Stage 1.

Error traceback output

No response

What operating system are you using?

No response

What version of Python are you running?

No response

What Python packages do you have installed?

No response

Code of Conduct

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