Correction for tiff band reader (GeoTiff reader's internal band map will not have reference to our product's bands, therefore we have to keep a 1:1 correspondence between references to product bands and tiff bands).
Merge branch 'spot5' of https://github.com/CS-SI/s2tbx into spot5
Attaching first a tiepoint geocoding (it's faster), and if failing, computing CRSGeocoding