Send DLNA devices message to only the matched interface

This will be the right way for multiple interfaces, or the client will
receive all devices message with different IP addresses and could not
detect which one could access.

And provide one option DlnaOptions.SendOnlyMatchedHost to fallback to old
behaviour if this commit missed something.

RSSDP/SsdpRootDevice.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Text;
 using System.Xml;
 using Rssdp.Infrastructure;
+using MediaBrowser.Model.Net;
 
 namespace Rssdp
 {
@@ -52,6 +53,15 @@ namespace Rssdp
         /// </summary>
         public Uri Location { get; set; }
 
+        /// <summary>
+        /// Gets or sets the Address used to check if the received message from same interface with this device/tree. Required.
+        /// </summary>
+        public IpAddressInfo Address { get; set; }
+
+        /// <summary>
+        /// Gets or sets the SubnetMask used to check if the received message from same interface with this device/tree. Required.
+        /// </summary>
+        public IpAddressInfo SubnetMask { get; set; }
 
         /// <summary>
         /// The base URL to use for all relative url's provided in other propertise (and those of child devices). Optional.