Espresso: [FR] - Implement Drag and Drop API

It would be nice if we have any framework methods to do drag and drop in espresso. As of now, we only have swipe gesture in espresso. If I try actions with longclick() and swipe() to drag a view, getting the following exception.

"android.support.test.espresso.InjectEventSecurityException: java.lang.SecurityException: Injecting to another application requires INJECT_EVENTS permission"

Start by reviewing Espresso's existing swipe gesture API and the reported InjectEventSecurityException. Done means defining and implementing a framework-level drag-and-drop API that addresses the limitation described in the issue, with coverage for the relevant gesture behavior.

Written by the indexing model from the issue text.