Raster calc functions #45
Description
We need to implement a few raster calculations:
1. min, max, avg per raster
In order to create this graph, we need to pull min, max, avg of each day (ie. each raster):
Also need to create a js wrapper fn to concat all raster stats into one array (for each year, or for give range).
2. min, max, avg per raster, by geojson mask
Same as above, but instead of whole raster, only over an area (geojson mask).