Pre-validation of NWB electrodes location for SI sorters Apps

[luiztauffer]

@magland
Should we include electrodes location data as a pre-validation step for SI-based sorters?
I just encountered an error during job execution due to a NWB file not having valid electrodes location information, this looks like a cheap validation to make and it would be very helpful.

We could have something similar to what already exists for electrical_series_path, but with electrode_table columns as options for location.

@alejoe91 it looks like in SI nwbextractor this info is hardcoded to be fetched from rel_x , rel_y and rel_z columns. Can we make this flexible?

[magland]

@luiztauffer that's a good idea

In pc-spike-sorting I use x, y, z and then fall back to rel_x, rel_y, rel_z. I agree this should be configurable somehow.

https://github.com/scratchrealm/pc-spike-sorting/blob/1c5250faf5219f056b266436c94fc14fc794a990/kilosort3/NwbRecording.py#L33-L51