Allow napari GUI to accept custom weights #682

Job	Run time
Check Manifest	18s
Check Linting	17s
Run tests with numba disabled	42m 13s
Run brainmapper tests to check for breakages	12m 26s
Run package tests (ubuntu-latest, 3.10)	5m 11s
Run package tests (ubuntu-latest, 3.11)	5m 11s
Run package tests (ubuntu-latest, 3.12)	5m 12s
Run package tests (macos-latest, 3.12)	4m 56s
Run package tests (windows-latest, 3.12)	5m 5s
Build source distribution and wheel	1s
Publish build distributions	1s
	1h 20m 51s

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