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

Output analyses and assessment of results, turning script into function

master script set up call to covariate production function

Covariates production raster modifications -transforming scrip into function

Covariates production raster first step turning script into function

GAM fusion function, modifications to allow TMIN predictions

Raster prediction gam fusion, modifications to allow TMIN predictions

Raster prediction gam fusion, modification in validation and output object