Allow addclass bots that are not in a real guild (#970)

src/PlayerbotAI.h

@@ -556,6 +556,7 @@ public:
     void ResetJumpDestination() { jumpDestination = Position(); }
 
     bool CanMove();
+    static bool IsRealGuild(uint32 guildId);
     bool IsInRealGuild();
     static std::vector<std::string> dispel_whitelist;
     bool EqualLowercaseName(std::string s1, std::string s2);