Instrument options keyword argument doesn't validate option names

[josePhoenix]

Passing in instrument.options['foo'] doesn't validate that 'foo' is actually an option provided by WebbPSF/POPPY. Also, I am told we don't have clear documentation of all the available options.

Ideally, we'd validate that options provided by the user are really allowed. I need to look at where the options dict goes in its path through the code and see if that's feasible. This may not be an easy fix, but it's worth mentioning so we're at least aware users are getting tripped up by it.

[mperrin]

To be documented better - no validation intentionally since sub optics can expose who knows what options.

Agreed this would be over engineering at this stage - but let's doc better.

[josePhoenix]

closed by d47b774