add some accesses'ors for the range metadata

protocol/esta/acn/dmp/dmp.h

@@ -94,6 +94,32 @@ struct Range
   uint32_t incriment = 0;   //!< property size (number of octets)
   uint32_t count     = 0;   //!< number of properties
 
+  /**
+   * @brief addressType
+   * @return
+   */
+  inline const address_type & getAddressType() const { return type_; }
+  /**
+   * @brief dataLength
+   * @return
+   */
+  inline element_length elementLength() const { return type_.address_length; }
+  /**
+   * @brief dataType
+   * @return
+   */
+  inline data_type_t type() const { return type_.data_type; }
+  /**
+   * @brief isAbsolute
+   * @return
+   */
+  inline bool isAbsolute() const { return !type_.relative; }
+  /**
+   * @brief isRelative
+   * @return
+   */
+  inline bool isRelative() const { return type_.relative; }
+
   size_t streamSize() const override;
   void   iStream(PDU::Stream) override;
   void   oStream(PDU::Stream) const override;