implement/match JukeBoxState (#233)

LEGO1/jukeboxstate.cpp

@@ -1 +1,6 @@
 #include "jukeboxstate.h"
+
+// OFFSET: LEGO1 0x1000f300
+MxBool JukeBoxState::VTable0x14() {
+  return FALSE;
+}

LEGO1/jukeboxstate.h

@@ -21,6 +21,8 @@ public:
     return !strcmp(name, JukeBoxState::ClassName()) || LegoState::IsA(name);
   }
 
+  virtual MxBool VTable0x14() override; // vtable+0x14
+
 };
 
 #endif // JUKEBOXSTATE_H