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/client/actions/GuildEmojiDelete.js

@@ -4,6 +4,7 @@ const { Events } = require('../../util/Constants');
 class GuildEmojiDeleteAction extends Action {
   handle(emoji) {
     emoji.guild.emojis.remove(emoji.id);
+    emoji.deleted = true;
     this.client.emit(Events.GUILD_EMOJI_DELETE, emoji);
     return { emoji };
   }