Committee report parsing

[wfdd]

There's two challenges here:

• Parsing all of the various incarnations of the attendee table
• Pairing reports with biils

The former simply requires work. The latter, well... Given that reports don't carry bill identifiers, we're gonna have to look up bills by their title on the date of the plenary a report was posted. This might pose an issue with renumbered amendments, and perennial bills and regulations, which are inconsistently assigned the year of the latest resubmission.

Bill titles will have to be normalised to replace Latin glyphs within Greek lexemes, which are a by-product of Parliament's shitty CMS—presumably.

We're also gonna need to find a good way to generate reproducible UIDs for committee reports.