experimenting with detection of gaps, testing rasterize

introducing function to make raster for tiles in the region

combining tif tiles and shapefiles to examine potential gaps

testing of files by tiles and combining listing

adding function predictions_tiles_missing_fun

more edit and adding test files checking for tiles

clean up of lising of tiles and shapefiles by region

changes to generate function to check missing tiles and predict gaps

initial commit for script to check missing tiles and predict gaps in mosaic: script part 0 global product assessment

experimenting with ffmpeg to generate movie from gif