viewing n-dimensional array

[d-v-b]

Light sheet microscopy often generates 4D datasets, where a single timepoint is a volume. It would be awesome if flika could support these datasets (and potentially 5-dimensional data, e.g. [time, trial, z, y, x]). Supporting these data would require a) generating an axis slider for each non-color axis beyond the first 2, and b) some way for the user to define which axis is time.

I'm not familiar enough with flika/pyqtgraph internals to submit a PR for this yet, but if there was a working PR for this would it be something the flika devs would be interested in?