raster prediction and gam fusion modifications for TMIN predictions

master script, running first test for TMIN predictions Venezuela

data preparation following up modifications related to flags and output from functions

Data preparation, degugging query year period and adding other improvements to keep track of datasets used in interpolation

run TMAX prediction Venezuela year 2000 with monthly averages from 2000-2010 time period

run TMAX prediction Venezuela for year 2000 with 1981-2010 period and modifications in sourcing and input parameters

Validation functions, degugging, missing parameters and library

Raster prediction, modifications to solve issues with calls and multiple sourcing

Initial commit summary outputs for covariates and stations used in modeling

Results output analyses, splitting code for covariates output summary