mosaicing functions, option to remove temporary files

mosaicing functions, fixing outputs names and directories

fixing function to create mosaics of residuals

mosaicing script function, fixing output filename and output directory

testing mosaicing in the workflow and debugging

mosaicing script, adding option to remove temporary files after mosaicing

mosaicing script, clean up of code and debugging for options

mosaicing script, adding options to run accuracy layers, variable predicted and other options

mosaicing script, testing residuals generation function for raster surface

fixing data range for mosaicing, output dir and reading of assessment inputs