Started building multiple indices library in the for of functions returning indices (band numbers) and function to be passed to overlay
Finished implementation of multiple indices. Not at all tested yet ...
Multi index feature seems to be working. At least for hdf, tiff has not been tested yet
Edited LandsatVI for evi. EVI is not independant from the scaling factor of reflectance data
Merge branch 'feature-multiVI' into develop
New Vis can be created in LandsatVI file; evi formula should be checked. Processing chain is yet to be tested on data delivered as tiff
hdf2ndvi deleted. Somehow replaced by sr2vi