dispatched method to avoid async ack response dupes in buffer

PJON.h

@@ -280,6 +280,33 @@ class PJON {
    };


    /* Check if a packet id is already dispatched in buffer: */

    bool dispatched(PJON_Packet_Info info) {
      PJON_Packet_Info actual_info;
      for(uint16_t i = 0; i < PJON_MAX_PACKETS; i++) {
        parse((uint8_t *)packets[i].content, actual_info);
        if(
          packets[i].state && packets[i].state != PJON_ACK &&
          (actual_info.header & PJON_ACK_MODE_BIT) &&
          (actual_info.header & PJON_TX_INFO_BIT)
        )
          if(
            actual_info.id == info.id &&
            info.sender_id == actual_info.receiver_id &&
            (
              !(info.header & PJON_MODE_BIT) ? true :
              bus_id_equality(
                info.receiver_bus_id,
                actual_info.receiver_bus_id
              )
            )
          ) return true;
      }
      return false;
    };


    /* Get count of the packets for a device_id:
       Don't pass any parameter to count all packets
       Pass a device id to count all it's related packets */
@@ -437,18 +464,19 @@ class PJON {
          if(_auto_delete && length == packet_overhead(data[1]))
            if(handle_asynchronous_acknowledgment(last_packet_info))
              return PJON_ACK;

          if(length > packet_overhead(data[1])) {
            dispatch(
              last_packet_info.sender_id,
              (uint8_t *)last_packet_info.sender_bus_id,
              NULL,
              0,
              0,
              config | PJON_ACK_MODE_BIT | PJON_TX_INFO_BIT,
              last_packet_info.id
            );
            update();
            if(!dispatched(last_packet_info)) {
              dispatch(
                last_packet_info.sender_id,
                (uint8_t *)last_packet_info.sender_bus_id,
                NULL,
                0,
                0,
                config | PJON_ACK_MODE_BIT | PJON_TX_INFO_BIT,
                last_packet_info.id
              );
              update();
            }
            if(known_packet_id(last_packet_info))
              return PJON_ACK;
          }