Scale icons from search to make app icons big like AA -> workspace

when dragging from search.

To scale the icon during dragging (instead of long press) I created a scale variable within DragOptions
so that right before dragStart gets called in DragController.java (in callOnDragStart())
the dragview scales before dragging..
 * note: the scale from search is 1.687 and the scale from allApps is 1.107
- included searchResult and smallSearchResult
- Added animation for scaling icon (used Interpolators.EMPHASIZED 500ms as suggested by motion designer)
- Cancel animation when drag finishes

bug: 222666176
test: Manual - after: https://drive.google.com/file/d/1ZZHnXlzdTxlM-RUIdJ6EOYkPPg6tCUxC/view?usp=sharing
before: https://drive.google.com/file/d/1NpBz3kT_slHXtpXObr_G8K6SZYG9_bLX/view?usp=sharing

Change-Id: I01309a3be928987ba00422ad947b80a3df865973

src/com/android/launcher3/BubbleTextView.java

@@ -942,6 +942,11 @@ public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
         return mIconSize;
     }
 
+    public boolean isDisplaySearchResult() {
+        return mDisplay == DISPLAY_SEARCH_RESULT ||
+                mDisplay == DISPLAY_SEARCH_RESULT_SMALL;
+    }
+
     private void updateTranslation() {
         super.setTranslationX(mTranslationForReorderBounce.x + mTranslationForReorderPreview.x
                 + mTranslationForMoveFromCenterAnimation.x