Added PRISM comparison to MOD06_summary and added script to calculate 'back-of-the-envelope' estimates of total daily climate layer sizes

Updated MOD06 compile script to process the tiles in parallel using GRASS. This brings processing time for 10 year archive for oregon from 48 hours to ~2 hours on 24 cores. Also added several exploratory analysis to the data_summary script.

Added cloud flag to outputs

First 10-year processing of daily mean tifs

MOD06 processing runs well in sequence, but not parallel

Adding some MOD06 (cloud product) processing routines. Still a work in progress

Initial commit

cleaned up file permissions

added in various previously uncommitted scripts