Change CloudVolume.mesh.get from fuse=True to fuse=False

[william-silversmith]

Would anyone be opposed if I change the default in CloudVolume.mesh.get from fuse=True to fuse=False?

At the time the default was set to True, we were working with data where the natural way to get a whole neuron was to piece together many segments. The field has moved on.

Nowadays, proofreading systems reliably either relabel segmentation so a single label is a single neuron OR there's a fancy system (a la FlyWire) where a database issues relabel instructions to oversegmentations dynamically. The fuse=True I think causes problems now.

https://twitter.com/thundercloudvol/status/1478143731467489281