Implement osNpcStand(<npc-id>)

Allows you to stand an NPC that has sat.

OpenSim/Region/Framework/Interfaces/INPCModule.cs

@@ -103,6 +103,14 @@ namespace OpenSim.Region.Framework.Interfaces
         /// <returns>true if the sit succeeded, false if not</returns>
         bool Sit(UUID agentID, UUID partID, Scene scene);
 
+        /// <summary>
+        /// Stand a sitting NPC.
+        /// </summary>
+        /// <param name="agentID"></param>
+        /// <param name="scene"></param>
+        /// <returns>true if the stand succeeded, false if not</returns>
+        bool Stand(UUID agentID, Scene scene);
+
         /// <summary>
         /// Delete an NPC.
         /// </summary>