fix test map

intelligine/tests/src/simulation/SimpleTestWorld1.tmx

   <tile id="2">
    <properties>
     <property name="object" value="stocked_food"/>
+    <property name="callbacks" value="stocked_food"/>
    </properties>
   </tile>
   <tile id="3">
    <properties>
     <property name="actions" value="clone(),"/>
     <property name="object" value="stocked_food"/>
+    <property name="callbacks" value="stocked_food"/>
    </properties>
   </tile>
   <tile id="4">
    <properties>
     <property name="actions" value="clone(2),"/>
     <property name="object" value="stocked_food"/>
+    <property name="callbacks" value="stocked_food"/>
    </properties>
   </tile>
   <tile id="5">
    <properties>
     <property name="actions" value="clone(3),"/>
     <property name="object" value="stocked_food"/>
+    <property name="callbacks" value="stocked_food"/>
    </properties>
   </tile>
   <tile id="6">
    <properties>
     <property name="actions" value="clone(4),"/>
     <property name="object" value="stocked_food"/>
+    <property name="callbacks" value="stocked_food"/>
    </properties>
   </tile>
  </tileset>