Version 2.1.0

Still based on the 783 public release of FlyWire but with substantial updates and revisions to cell types and other annotations. This is the version reported on in the Schlegel et al., Nature (2024) and Dorkenwald et al., Nature (2024).

Highlights:

• updated cell_type for 3.3k neurons (mostly ANs, see below)
• ascending neurons have been given preliminary cell_type and cell_class corresponding to their innervation pattern
• added 50 new hemibrain types
• minor fixes in flow, super_class, cell_class, ito_lee_hemilineage, side and status

See attached report for a summary of all changes.