Added the current saga spatial functions to the package, made edits to pass the checks
all examples are coded with \dontrun and a blank example, will need to be updated with the Zenodo retrieval script
vignette has not yet been added, as it will also need to be adapted to the Zenodo script and new data set (Upper Penticton)
there is a note generated that no global definition exists for crs and st_crs, although they are clearly defined in the dependencies and importFrom tags. Not sure why that is being generated, but it is only a note not a warning, so ignored for now
Added the current saga spatial functions to the package, made edits to pass the checks