d_a_obj_key / d_a_obj_keyhole / d_a_obj_smallkey (#2584)

* obj_key equivalent

* obj_keyhole done

* obj_smallkey done

* use macro

include/d/actor/d_a_e_oc.h

@@ -84,6 +84,7 @@ public:
     f32 getPlayerRange() const { return mPlayerRange; }
     int getActionMode() const { return mActionMode; }
     daE_OC_c* getTalkOc() const { return mpTalk; }
+    J3DModel* getOcModel() { return mpMorf->getModel(); }
 
 private:
     /* 0x5a0 */ request_of_phase_process_class mPhaseReqs[2];