Merge pull request #30 from indygreg/modules-directory

Move common modules to a separate directory (pylib) from the scripts.
Add class and decorator for more easily interfacing with FHR data
Move count_fhr_facets.py into fhr script subdir
Script to retrieve FHR errors
Script to retrieve FHR session counts
Script to measure Telemetry and Blocklist flags
Script to obtain Places counts
Script to dump large payloads
Script to record search counts by where in the browser they were performed
Script to record which search engines were used