feat: Add "deleted" property to multiple structures. (#2556)

* Add "deleted" property to "Message" structure

* Add "deleted" property to Multiple structures

Structures edited:
- Channel
- Emoji
- Guild
- Guild Member
- Role

* Update "deletable" getter

* Fix ESLint "no-trailing-spaces" errors

* Requested Change: Mark w/ bulkDelete

src/structures/Guild.js

@@ -50,6 +50,12 @@ class Guild extends Base {
      */
     this.presences = new PresenceStore(this.client);
 
+    /**
+     * Whether the bot has been removed from the guild
+     * @type {boolean}
+     */
+    this.deleted = false;
+
     if (!data) return;
     if (data.unavailable) {
       /**