Move Resources folder under project name for objc

The default objc template accidentally had the Resources folder sitting
in the root of the project, instead of under the project name folder.
The default Swift template already handles this properly.

defaults/liftoffrc

@@ -67,16 +67,16 @@ app_target_templates:
         - <%= prefix %>AppDelegate.h
         - <%= prefix %>AppDelegate.m
       - Views:
-    - Resources:
-      - Images.xcassets
-      - Storyboards:
-        - Main.storyboard
-      - Nibs:
-        - LaunchScreen.xib
-      - Other-Sources:
-        - Info.plist
-        - <%= project_name %>-Prefix.pch
-        - main.m
+      - Resources:
+        - Images.xcassets
+        - Storyboards:
+          - Main.storyboard
+        - Nibs:
+          - LaunchScreen.xib
+        - Other-Sources:
+          - Info.plist
+          - <%= project_name %>-Prefix.pch
+          - main.m
   swift:
     - <%= project_name %>:
       - Extensions: