Implement Performance.measure support for RN (JS side)

Summary:
Changelog: [Internal]

This adds JS side implementation (including the API) for the `Performance.measure` functionality, [as described in the corresponding standard](https://www.w3.org/TR/user-timing/#measure-method).

The JS part is separated from the C++ implementation (further down the stack) to help the review being more focused.

Reviewed By: mdvacca

Differential Revision: D41733190

fbshipit-source-id: 72b69f6bb332aed4b9477a186b0e818b62009220

Libraries/WebPerformance/NativePerformance.js

@@ -14,6 +14,17 @@ import * as TurboModuleRegistry from '../TurboModule/TurboModuleRegistry';
 
 export interface Spec extends TurboModule {
   +mark?: (name: string, startTime: number, duration: number) => void;
+  +clearMarks?: (markName?: string) => void;
+
+  +measure?: (
+    name: string,
+    startTime: number,
+    endTime: number,
+    duration?: number,
+    startMark?: string,
+    endMark?: string,
+  ) => void;
+  +clearMeasures?: (measureName?: string) => void;
 }
 
 export default (TurboModuleRegistry.get<Spec>('NativePerformanceCxx'): ?Spec);