GAM CAI function added climatology GAM models for OR tmax interpolation

GAM CAI, added constant sampling over year and monthly extraction for climatology fitting

GAM CAI function for raster prediction, task #493, tmax OR interpolation
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GAM CAI raster prediction first commit, task #491, OR tmax interpolation

Methods comp part7-task#491- SNOT-GHCN data updated script debugged to run through mcapply

Methods comp part7-task#491- SNOTEL and GHCN analyses update main script calling function

Methods comp part7-task#491- function for residuals analyses comparison SNOTEL and GHCN through dates

Methods comp part7-task#491- residuals analyses using SNOTEL data, initial commit

Methods comp part6-task#491- Download FTP script and data prepartion for SNOTEL Data

Methods comp part5-task#491- residuals analyses, spatial transect through stations with diff and elevation