adjavon

Reduce code duplication with `funlib.persistence`

3

Many of the specifics of reading Zarr files are already handled in `fun lib.persistence`. It also already generalizes to other sources of array data. Goal is to generalize the `ZarrSource`...

- [x] Fix existing failing tests - [x] Add code coverage to the repo - [ ] Get tests to cover 75% - [ ] Get tests to cover 85%...