RyuLDN implementation

These changes allow players to matchmake for local wireless using a LDN
server. The network implementation originates from Berry's public TCP
RyuLDN fork. Logo and unrelated changes have been removed.

Additionally displays LDN game status in the game selection window when
RyuLDN is enabled.

Functionality is only enabled while network mode is set to "RyuLDN" in
the settings.

src/Ryujinx.UI.Common/Configuration/ConfigurationFileFormat.cs

@@ -415,6 +415,21 @@ namespace Ryujinx.UI.Common.Configuration
         /// </summary>
         public string MultiplayerLanInterfaceId { get; set; }
 
+        /// <summary>
+        /// Disable P2p Toggle
+        /// </summary>
+        public bool MultiplayerDisableP2p { get; set; }
+
+        /// <summary>
+        /// Local network passphrase, for private networks.
+        /// </summary>
+        public string MultiplayerLdnPassphrase { get; set; }
+
+        /// <summary>
+        /// Custom LDN Server
+        /// </summary>
+        public string LdnServer { get; set; }
+
         /// <summary>
         /// Uses Hypervisor over JIT if available
         /// </summary>