Various modifications in preprocessing codes. Improved datachunking, corrected bugs in weather dataset download, small improvements in script speed. Added a notebook to help prepare landcover and soil data for pixel mode

Finished ndvi extraction scripts. Added parcel mode to weather scripts. Wrote script to convert dataframes into xarray datasets for parcel mode.

Started working on modspa parcel mode. Rewrote pre-modspa functions for better integration to modspa pixel. Improved efficiency and simplicity at the same time.