Backport news/store channels

src/structures/NewsChannel.js

@@ -0,0 +1,24 @@
+const TextChannel = require('./TextChannel');
+
+/**
+ * Represents a guild news channel on Discord.
+ * @extends {TextChannel}
+ */
+class NewsChannel extends TextChannel {
+  constructor(guild, data) {
+    super(guild, data);
+    this.type = 'news';
+  }
+
+  setup(data) {
+    super.setup(data);
+
+    /**
+     * The ratelimit per user for this channel (always 0)
+     * @type {number}
+     */
+    this.rateLimitPerUser = 0;
+  }
+}
+
+module.exports = NewsChannel;