Add extractors for SiNAPS Research Platform

[NinelK]

Contains extractors from binary format (raw + filtered + aux channels) as well as an additional extractor from *.h5 format (only filtered channels)

[alejoe91]

@NinelK can you allow edits from maintainers? The pre-commit bot failed to refactor the code according to black

[NinelK]

@NinelK can you allow edits from maintainers? The pre-commit bot failed to refactor the code according to black

it was allowed in the settings on the side, not sure why pre-comit.ci can not push.
I ran black locally, and it seems like this resolves the issue.

[alejoe91]

Maybe we can just apply the unsigned_to_signed in the get_traces, which is simpler to read and will get rid of the complex class interplay. I can implement that

[alejoe91]

done

[alejoe91]

@NinelK after discussing with @samuelgarcia, we decided that in this case it's worth adding the unsigned to signed scaling directly to the SinapsH5Extractors (avoiding that class trick, which makes it less readable).

Also moved everything to a single file and cleaned docs and helper functions. Ready to merge on my end

[alejoe91]

@NinelK can you test it one more time on your side? I don't have h5 test data

[NinelK]

@NinelK can you test it one more time on your side? I don't have h5 test data

I'm on it now

[NinelK]

All works now, just fixed 1 issue with a missing argument