cleanup(tooling): move tooling to the browser platform and rename profile into instrumentation

BREAKING CHANGE

Before

import * as p from 'angular2/profile';
import * as t from 'angular2/tools';

After

import * as p from 'angular2/instrumentation';
import * as t from 'angular2/platform/browser';

modules/angular2/instrumentation.ts

@@ -0,0 +1,7 @@
+export {
+  wtfCreateScope,
+  wtfLeave,
+  wtfStartTimeRange,
+  wtfEndTimeRange,
+  WtfScopeFn
+} from './src/core/profile/profile';