initial commit for function script for global product assessment part 1

aggregating training and testing ifnormation by day and quick first plot as test

adding time series object for plotting extracted time series profiles from new stack of 30 years for region 4

subsetting day and extracting pixel time series profiles for stations

more changes assembling station with training and testing for specific day

extracting dates from raster file name and assembling station data from assessment

global product assessment part 1, initial commit

debugging and generating mosaics for NASA conference

debugging mosaicing for region 4

functions script used for NASA conference figures production