Adds support for extraction filters as defined in
https://peps.python.org/pep-0706/
and implemented in Python 3.12.
By my reading, setting the filter to `'data'` or `'tar'` is probably
safe, whereas `'fully_trusted'` or the default (which is the same as
`None`) is not.
For now, I have just added this modelling to the tarslip query. We could
also share it with the modelling of `shutil.unpack_archive` (which has also
gained a `filter` argument), but it was unclear to me where we should put
this modelling in that case. Perhaps the best solution would be to merge
the experimental `py/tarslip-extended` query into the existing query (in
which case the current location is perhaps not too bad).
This was a bit of a mess, since there was crosstalk between the
TarSlip and PathInjection queries. (Also one of these needs the
`options` file to be in one way, and the other not). To fix this, I
split these out into separate directories.
