navis-org/fafbseg-py: Version 1.15.1

Tons of changes and improvements. Here are some of the highlights:

1. The FlyWire synapse/connectivity queries can now be run against the filtered table which is what you see in Codex. See the filtered parameters for these functions.
2. Improvements to the skeletonization.
3. flywire.get_mesh_neuron can now be run against the flat 630 segmentation which is much faster.

Tons of other improvements/fixes - please see the commit history for the full list.