Add support for plugin client intent specification

BrackeysBot.API/Plugins/PluginIntentsAttribute.cs

@@ -0,0 +1,26 @@
+using System;
+using DisCatSharp;
+
+namespace BrackeysBot.API.Plugins;
+
+/// <summary>
+///     Specifies the Discord client intents that this plugin will utilise.
+/// </summary>
+[AttributeUsage(AttributeTargets.Class)]
+public sealed class PluginIntentsAttribute : Attribute
+{
+    /// <summary>
+    ///     Initializes a new instance of the <see cref="PluginIntentsAttribute" /> class.
+    /// </summary>
+    /// <param name="intents">The intents.</param>
+    public PluginIntentsAttribute(DiscordIntents intents)
+    {
+        Intents = intents;
+    }
+
+    /// <summary>
+    ///     Gets the intents.
+    /// </summary>
+    /// <value>The intents.</value>
+    public DiscordIntents Intents { get; }
+}

BrackeysBot/Plugins/SimplePluginManager.cs

@@ -242,10 +242,17 @@ public Plugin LoadPlugin(string name)
         }
         else
         {
+            var intents = DiscordIntents.AllUnprivileged;
+            var intentsAttribute = type.GetCustomAttribute<PluginIntentsAttribute>();
+
+            if (intentsAttribute is not null)
+                intents = intentsAttribute.Intents;
+
             plugin.DiscordClient ??= new DiscordClient(new DiscordConfiguration
             {
-                Token = token,
-                LoggerFactory = new NLogLoggerFactory()
+                Intents = intents,
+                LoggerFactory = new NLogLoggerFactory(),
+                Token = token
             });
         }