Add extension activation pings
Created by: tjkandala
Closes #2348 (closed)
Progress
-
Log "ExtensionActivation"
event on non-default extension activation -
Anonymize private registry extensions -
Add extension ping queries -
Test extension ping queries -
Add extension pings to documentation and site admin page -
Open BigQuery schema PR (https://github.com/sourcegraph/analytics/pull/97)