Sort libraries by github topic on list

[tannewt]

It's awesome that this list is auto-updated: https://github.com/adafruit/Adafruit_CircuitPython_Bundle/blob/master/circuitpython_library_list.md

However, it's not as useful the manually updated driver page because it gives more detail. https://circuitpython.readthedocs.io/projects/bundle/en/latest/drivers.html

Could we use the repo description and topics of each to make the auto-generated list more useful? That would give us reason to have good repo metadata too.