ENH: Enabling the support of windows and AOI when loading bands

[remi-braun]

When loading bands, enable the support of:

• Rasterio windows
• AOI (any fiona driver, including KML)

Loading a window

• use rioxarray isel_window ?

Loading an AOI

• determine its extent
• load only its window
• then crop the windowed array by the AOI

⚠️ Implementation limits

➡️Pay attention to non orthorectified or non projected bands.
✔️Ortho/project them entirely first to mimic the orthorectification of the whole VHR stacks before reading a band.
➡️What file to write on disk, only the whole files ?
✔️Always load, process nodata or clean pixels for the whole file, and then read a window (to complicated to manage a file per window)

[remi-braun]

Look at Salem

Salem is a small library to do geoscientific data processing and plotting. It extends xarray to add geolocalised subsetting, masking, and plotting operations to xarray’s DataArray and DataSet structures.

[remi-braun]

NB: this would be at first an improvement of the functions of sertit's rasters.read and rasters_rio.read

[remi-braun]

Done in sertit-utils==1.21.0 🚀