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

mosaicing script, major changes to further integrate code in the workflow

analyses of extremes more changes and debugging to record data

analyses of extremes, debugging assessment part5

analyses of extremes, fixing figures for assessment part 5

analyses of extreme values part 5 assessment, examining frequency of extremes by tiles

analyses of extreme values, part 5 assessment script adding section for missing values