Add empty placeholders to fix HIO funcs missing when linking debug version

src/d/actor/d_a_sail.cpp

@@ -33,7 +33,7 @@ public:
         mNo = -1;
     }
 
-    void genMessage(JORMContext* ctx);
+    void genMessage(JORMContext* ctx) {}
 
 public:
     /* 0x04 */ s8 mNo;