* Define rough code for PerformanceReporter
* Create a component to manage the PerformanceReporter
* Start adding tests for PerformanceReporter
* Add test for web vitals reporting
* Update schema to more closely match the API spec
* Collect marks as counters and further update structure of API payload
* Add some outstanding TODOs about the API structure
* Add counter for long tasks
* Add EnableClientMetrics without any System Console UI
* Have PerformanceReporter use EnableClientMetrics
* Have the PerformanceReporter only report results when logged in
* Add test for having PerformanceReporter fall back to fetch
* Stop logging errors for measurements failing
* Remove buffered from observer
* Remove the Mystery Ampersand
* Still record marks with telemetry actions even if telemetry is disabled
* Add timestamps to performance reports
* Reuse the new telemetry code for the old telemetry
* The second half of the last commit
* Use Node performance libraries in all tests
* Set version of PerformanceReport
* Switch to the proper version of EnableClientMetrics
* Remove TODO for unneeded field
* Add user agent and platform detection
* Updated metrics API route
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