LSIF server metrics
Created by: efritz
NOTE: 2100 lines are from a generated grafana dashboard, and a few hundred others are boilerplate for jsonnet.
- Add prometheus instrumentation to the LSIF server
- Create a grafana dashboard for the LSIF server via jsonnet generation
- Add a small POC grafonnet-based utility that can be used to create similar dashboards in the future.
This branch will target master once lsif-clean-sqlite and lsif-linked-reference-results have been merged.