Chrome devtools elements tab support for Android (#4351)

* Enable chrome-devtools elemets tab

* Trigger updates when property is chaned form native

* Tslint fixes

* Don't run dom-elemet tests in IOS

* fix tests

* Create package.json

* Update package.json

* domNode changed to field for performance

tns-core-modules/ui/frame/frame-common.ts

@@ -34,6 +34,10 @@ function onLivesync(args: EventData): void {
 }
 application.on("livesync", onLivesync);
 
+if (global && global.__inspector) {
+    require("tns-core-modules/debugger/devtools-elements");
+}
+
 let frameStack: Array<FrameBase> = [];
 
 function buildEntryFromArgs(arg: any): NavigationEntry {