* add new types of performance monitoring * adding LCP * adding cls to perf relayer * add test for cls and lcp * nit fixes * re-organizing code * fixing tests for lcp * updating size limits in test
unstable_onPerformanceData
* Performance relayer for client side performance * adding paint metrics * fixing titles * fixing route change measure * accessing exports without loop * adding more tests * renaming the method * adds experimental prefix to method name * applying the suggested patch * Update index.js