Reaction feature added. (#1400)

* Fix get order.

* Fix types.

* Add set picture for profile and for groups.

* Fix bug.

* Fix

* Fix types

* Fix eslint

* Add send reaction feature.

* Add send reaction feature.

* Add set picture for profile and for groups.

* Add send reaction feature.

* Add send reaction feature.

* Add send reaction feature.

* Add send reaction feature.

* Add send reaction feature.

* Add send reaction feature.

* Update src/structures/Reaction.js

Co-authored-by: Noah van der Aa <ndvdaa@gmail.com>

* Bug fixes.

* Bug fixes.

* Bug fixes.

* Fix

* Fix

* Fix example

* Fix conflict

* Fix conflict

* Fix conflict

* Fix conflict

* Fix conflict

* Fix conflict

* move implementation to message model

Co-authored-by: Noah van der Aa <ndvdaa@gmail.com>
Co-authored-by: Pedro Lopez <pedroslopez@me.com>

src/util/Util.js

@@ -6,7 +6,6 @@ const { tmpdir } = require('os');
 const ffmpeg = require('fluent-ffmpeg');
 const webp = require('node-webpmux');
 const fs = require('fs').promises;
-
 const has = (o, k) => Object.prototype.hasOwnProperty.call(o, k);
 
 /**