Fix CLI in sigmoidal
Rename sigmoidal to sigtransform
Rename raster_algebra to utils
Rename sigtransform to index_transform.py
Refactor sigmoidal index code to new module
Restructure code in utils.py
Leave only CLI stuff to index_transform.py
Lint DataFrame.py
Remove all run settings from utils
Fix outputdie in sigmoidal.py
Tool index_transform.py operational