[RO] OnRentalExpireEvent

// https://github.com/HerculesWS/Hercules/pull/1046

    prontera,155,171,5  script  Sample#rental_test  4_PORING,{
        rentitem 5353,1; // Helm of Sun rent for 1 seconds.
        end;
    }

    -   script  rental_1    -1,{

        OnRentalExpireEvent:
            // do whatever you want here when item expired.
            dispbottom " ---- Item Expired ---- ";
            dispbottom " > @expire_itemid = "+@expire_itemid;
            dispbottom " > @expire_refine = "+@expire_refine;
            dispbottom " > @expire_identify = "+@expire_identify;
            dispbottom " > @expire_attribute = "+@expire_attribute;
            dispbottom " > @expire_bound = "+@expire_bound;
            dispbottom " > @expire_uniqueid = "+@expire_uniqueid;
            dispbottom " > @expire_card[0] = "+getitemname( @expire_card[0] );
            dispbottom " > @expire_card[1] = "+getitemname( @expire_card[1] );
            dispbottom " > @expire_card[2] = "+getitemname( @expire_card[2] );
            dispbottom " > @expire_card[3] = "+getitemname( @expire_card[3] );

            // must clear variables to avoid possible exploit !!
            // especially with multiple NPCs running same label
            @expire_itemid = 0;
            @expire_refine = 0;
            @expire_identify = 0;
            @expire_attribute = 0;
            @expire_bound = 0;
            @expire_uniqueid = 0;
            deletearray @expire_card;
            end;

    }