Store and Model Refactor (#1618)

* UserStore refactor

* Create ChannelStore, remove redundant methods in ClientDataManager

* Create GuildStore

* Emoji stuff

* Use a Base class where possible to reduce code duplication

* Remove unnecessary comments from ChannelStore

* Add Base._clone();

* Remove unused ClientDataManager methods

* Refactor some more stuff

* ESLint

* Move Client#fetchUser to client.users.fetch

* Remove .has checks and just see if .get is truthy

* Fix guild member chunk error

* ESLint

* Fix typo

* Fix channel storing for user bots

* Remove ClientDataManager

* GuildChannelStore

* Reduce use of Util.cloneObject

* and this one too

* update typings

* Fix MessageUpdate handling (#1507)

* Fix role updates (probably fixes #1525)

* fix for eslint

* Address some of appell's comments

* Use debug constant

* start message store crap if it's ugly tell me later k

* fix that

* message store but works™️

* clean up guild stuff

* clean up channel store stuff

* clean up channel event handling

* does this message stuff work? find out soon in the next episode of dIsCoRd.Js

* eslint

* emojis

* emojis and reactions

* hi my name is eslint and im A LIL SHIT

* so i forgot this huh

* user stuff

* Fix @class

* Fix message stuff

* Fix user store docs

* Document all the bases

* fix the super things

* tidy up remove

* fix textbasedchannel

* fix that too

* fix emoji store

* make voice state stuff less ugly

* make voice states even less ugly

* make members less bad

* fix bug

* fix that too

* fix reactions

* how was this broken for so long

* role store

* remove super._patch from UserConnection

* Rename UserProfile#setup to _patch

* remove unnecessary super calls

* update docgen dep (pls fix travis thx)

* doc messagestore

* fix docs

* message store docs

* things

* DOCS PLS

* more things

* Document TextBasedChannel#messages as a MessageStore

* Rebase

* All the stores!

src/structures/Base.js

@@ -0,0 +1,28 @@
+/**
+ * Represents a data model that is identifiable by a Snowflake (i.e. Discord API data models).
+ */
+class Base {
+  constructor(client) {
+    /**
+     * The client that instantiated this
+     * @name Base#client
+     * @type {Client}
+     * @readonly
+     */
+    Object.defineProperty(this, 'client', { value: client });
+  }
+
+  _clone() {
+    return Object.assign(Object.create(this), this);
+  }
+
+  _patch(data) { return data; }
+
+  _update(data) {
+    const clone = this._clone();
+    this._patch(data);
+    return clone;
+  }
+}
+
+module.exports = Base;