feature: warn on invalid gateway intents (#1948)

src/Discord.Net.WebSocket/DiscordSocketConfig.cs

@@ -183,6 +183,11 @@ namespace Discord.WebSocket
         /// </remarks>
         public GatewayIntents GatewayIntents { get; set; } = GatewayIntents.AllUnprivileged;
 
+        /// <summary>
+        ///     Gets or sets whether or not to log warnings related to guild intents and events.
+        /// </summary>
+        public bool LogGatewayIntentWarnings { get; set; } = true;
+
         /// <summary>
         ///     Initializes a new instance of the <see cref="DiscordSocketConfig"/> class with the default configuration.
         /// </summary>