移除Core，新增各接口用于sdk扩展

source/src/ECS/Components/Physics/Colliders/PolygonCollider.ts

@@ -23,5 +23,13 @@ module es {
             Polygon.recenterPolygonVerts(points);
             this.shape = new Polygon(points);
         }
+
+        public debugRender(batcher: IBatcher) {
+            let poly = this.shape as Polygon;
+            batcher.drawHollowRect(this.bounds, Debug.colliderBounds, 1);
+            batcher.drawPolygon(this.shape.position, poly.points, Debug.colliderEdge, true, 1);
+            batcher.drawPixel(this.entity.transform.position, Debug.colliderPosition, 4);
+            batcher.drawPixel(this.shape.position, Debug.colliderCenter, 2);
+        }
     }
 }