Improve annotation data quality

Add support for loading routeview files from file bytes (#270)
Add ISO subdivision codes (#275) …
Increase machine size to avoid OOM (#278) …
Add missing fields to /annotate's response (#277) …
Fix Go Report Card issues (#281) …
Add support for local testing (#280) …
Add FIPS to ISO conversion to legacy Geo Annotations (#279) …
Add support for setting Missing:true when appropriate (#283) …
Import site package as-is from m-lab/etl (#284) …
Add support for site annotations to the site package (#285) …