Place configuration files that influence fx operation in this directory.
build-auth reflects configuration that influences authentication for build services like RBE and ResultStore. Settings are auto-detected, but can be manually overridden. Used by fx rbe auth and fx build.build-metrics controls pushing of RBE logs and metrics to BigQuery. Set by fx build-metrics, and used by fx build.build-profile controls profiling local memory and network usage during build. Set by fx build-profile, and used by fx build.metrics controls per-tree behaviors of sending fx metrics to Google Analytics.