Refactoring some folder binding logic:

> Moving grid calcutation in a separate class
> Moving content saving logic to folder instead of relying on item bind

Bug: 139051851
Change-Id: I81b226dbebe13652482a767c992e8cc8f4f35a60
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index 09fb244..976ccd5 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -2702,6 +2702,14 @@
             }
         }
 
+        /**
+         * Sets the position to the provided point
+         */
+        public void setXY(Point point) {
+            cellX = point.x;
+            cellY = point.y;
+        }
+
         public String toString() {
             return "(" + this.cellX + ", " + this.cellY + ")";
         }