testing mosaicing for accuracy layers with new options and functions

cleaning up code and removing options to mosaicing part

moving generate accuray layers functions to script function mosaicing and adding different options

debugging function to generate accuracy layers by tiles

adding function to generate accuracy layer by tiles before mosaicing

adding mosaicing of accuracy layers derived from training

debugging accuracy, adding missing parameters in layers production

debugging errors in accuracy layers and adding accuracy based on training data

pre process mosaicing, adding function for not matching extent

initial commit for function script for global product assessment part 1