Flatten resources to gfx and sfx folders

resources/common/character.json

@@ -56,8 +56,8 @@
     }
   },
   "particles": {
-    "Circle": {"anm2": "gfx/particle/circle.anm2", "animation": "Main"},
-    "Puff": {"anm2": "gfx/particle/puff.anm2", "animation": "Main"}
+    "Circle": {"anm2": "gfx/circle.anm2", "animation": "Main"},
+    "Puff": {"anm2": "gfx/puff.anm2", "animation": "Main"}
   },
   "area": {"gravity": 0.95, "friction": 0.75, "airResistance": 0.975}
 }