* [DevTools] front-end for profiling event stack
Adds a side-bar to the profiling tab. Users can now select an update event, and are
shown the callstack from the originating component. When a source path is available
there is now UI to jump to source.
Add FB enabled feature flag: enableProfilerComponentTree for the side-bar.
resolves#24170
Refactor DevTools to record Timeline data (in memory) while profiling. Updated the Profiler UI to import/export Timeline data along with legacy profiler data.
Relates to issue #22529
