d_a_npc_ins equivalent (#2685)

* initial work

* over half done

* almostish done

* equivalent

* PR cleanup

include/d/actor/d_a_player.h

@@ -1238,6 +1238,8 @@ public:
         onHeavyState();
         onEndResetFlg1(ERFLG1_UNK_40000);
     }
+
+    BOOL checkInsectRelease() { return checkResetFlg1(RFLG1_UNK_100); }
 };
 
 int daPy_addCalcShort(s16* param_0, s16 param_1, s16 param_2, s16 param_3, s16 param_4);