Implement various methods in InfoCenter folder (#465)

* push changes

* Fix return type of Infocenter::Tickle

* Fixes/matches

* Code clarity

* Move assert

---------

Co-authored-by: Christian Semmler <mail@csemmler.com>

LEGO1/lego/legoomni/include/elevatorbottom.h

@@ -40,6 +40,8 @@ public:
 
 private:
 	undefined4 m_unk0xf8; // 0xf8
+
+	MxLong HandleNotification17(MxParam& p_param);
 };
 
 #endif // ELEVATORBOTTOM_H