Change import strategy

[half-adder]

Importing images for different imaging strategies has gotten too complex to handle in a "fancy" way. Time series experiments vs "one-off" experiments etc.

importing images should be done explicitly instead of implicitly.

The strategy will be to require a metadata table mapping frame to each dimension, like so:

frame	animal	pair	timepoint	wavelength
1	1	0	0	410
2	1	0	0	470
3	1	0	0	TL
...	...	...	...	...

and each row would be a frame.

This will allow different importers (e.g. with the GUI) to help to create that table implicitly and write it to disk, but that table on disk will be the ultimate "source of truth".