Fix pizza bot example.

Author: Oceania2018

tests/BotSharp.Plugin.PizzaBot/data/agents/8970b1e5-d260-4e2c-90b1-f1415a257c18/agent.json

@@ -13,7 +13,7 @@
   "routingRules": [
     {
       "type": "planner",
-      "field": "NaviePlanner"
+      "field": "NaivePlanner"
     }
   ]
 }