initial commit, assessment part3 to combine all outputs

fixing issues related to shapefiles

adding figures 8 related to summary of accuracy

figures listing in script assessment part2

modifying assessment script part2 figures creation

stage 6 master script using modified figure assessment script2

more changes to part3 assessment overall figure combined assessment

debugging of figures and adding figure 9 to produce yearly comparison of RMSE

initial commit assessment part3 to combine yearly results into figures for presentation

part2 assessment figure production, for testing on bridge