WidgetTray revamp work
- RecyclerView is rendering
- Animation is connected
- Drag and drop is now handled
- UI tweaking: background, margins, more to come.
- Flicker and preview not loading issue:
  fixed height for the horizontal scroll view.
- Shortcuts are added
- Widget Preview loading should support shortPress for drop
- UI tweaks left: overlay of arrow when there are more items to scroll
- icons are added in the section header
- Sorting of widget sections and widget horizontal list
- Adding all the padding constants to dimen.xml file
- RecyclerView should only support one view type

For items to be addressed in follow up patches OR CLs,
TODO is added to the comment.

b/19897708

Change-Id: Ibfc4da1696a23d20bada93db46e126706eb13cdc
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index d657cb5..111de40 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -22,7 +22,7 @@
 /**
  * Settings related utilities.
  */
-class LauncherSettings {
+public class LauncherSettings {
     /** Columns required on table staht will be subject to backup and restore. */
     static interface ChangeLogColumns extends BaseColumns {
         /**
@@ -121,7 +121,7 @@
     /**
      * Favorites.
      */
-    static final class Favorites implements BaseLauncherColumns {
+    public static final class Favorites implements BaseLauncherColumns {
         /**
          * The content:// style URL for this table
          */
@@ -217,12 +217,12 @@
         /**
          * The favorite is a widget
          */
-        static final int ITEM_TYPE_APPWIDGET = 4;
+        public static final int ITEM_TYPE_APPWIDGET = 4;
 
         /**
          * The favorite is a custom widget provided by the launcher
          */
-        static final int ITEM_TYPE_CUSTOM_APPWIDGET = 5;
+        public static final int ITEM_TYPE_CUSTOM_APPWIDGET = 5;
 
         /**
          * The favorite is a clock