STAC data ingest

[eor314]

Data import scripts for geospatial data with SpatioTemporal Asset Catalogue (STAC) metadata. Lots of AUV and satellite image data uses this standard. Will be important for ingest of benthic image data collected with robots (e.g. Haig Fras survey from 2012).

NB: In the Haig Fras example, the images are stitched together into transect strips. We should think about if it is more appropriate to save them as individual frames or in the strips.

[habaldwin01]

Looks good to me, I'll add this use case to the back burner for now.