Add python data loading script for neuropixels 1.0e headstage workflow

[jonnew]

• Modified example workflow a bit to facilitate this. Namely, timestamps in files names were replaced with file counts because the headstage's design means that data streams start at signficantly different times
• Fixes #88

[jonnew]

Actually kinda do, but I dont care enough to make a big deal out of it.

Timestamps are the best for filenames. But they become extremely annoying if there are bunch of files for a single session that get created at different times and therefore have different suffixes. This is going to be common with this library, so we should stay away from them.

It also indicates we need a more unified recording operator, but this is already on the TODO.

[jonnew]

Note that this script still needs to be inserted into the docs for this merge to be complete.