feat: remove datastores and implement Managers (#3696)

* Initial commit: add 5 initial managers

- Base manager
- GuildChannelManager
- MessageManager
- PresenceManager
- Reaction Manager
- Added LimitedCollection

* Add GuildEmojiManager, various fixes

* Modify some managers and add guildmembermanager

* Initial integration

* Delete old stores

* Integration part two, removed LRUCollection

- Most of the integration has been finished
- TODO typings
- Removed LRUCollection, needless sweeping

* Typings + stuff i somehow missed in ChannelManager

* LimitedCollection typings/ final changes

* Various jsdoc and syntactical fixes, Removed Util.mixin()

* tslint fix

* Grammatical and logical changes

* Delete temporary file placed by mistake

* Grammatical changes

* Add missing type

* Update jsdoc examples

* fix: ChannelManager#remove should call cache#delete not cache#remove

* fix recursive require

* Fix missed cache in util

* fix: more missed cache

* Remove accidental _fetchMany change from #3645

* fix: use .cache.delete() over .remove()

* fix: missing cache in ReactionCollector

* fix: missed cache in client

* fix: members is a collection not a manager

Co-Authored-By: Sugden <28943913+NotSugden@users.noreply.github.com>

* fix: various docs and cache fixes

* fix: missed cache

* fix: missing _roles

* Final testing and debugging

* LimitedCollection: return the Collection instead of undefined on .set

* Add cache to BaseManager in typings

* Commit fixes i forgot to stage yesterday

* Update invite events

* Account for new commit

* fix: MessageReactionRemoveAll should call .cache.clear()

* fix: add .cache at various places, correct return type

* docs: remove mentions of 'store'

* Add extra documented properties to typings

Co-authored-by: Sugden <28943913+NotSugden@users.noreply.github.com>
Co-authored-by: SpaceEEC <spaceeec@yahoo.com>

src/structures/DMChannel.js

@@ -2,7 +2,7 @@
 
 const Channel = require('./Channel');
 const TextBasedChannel = require('./interfaces/TextBasedChannel');
-const MessageStore = require('../stores/MessageStore');
+const MessageManager = require('../managers/MessageManager');
 
 /**
  * Represents a direct message channel between two users.
@@ -19,10 +19,10 @@ class DMChannel extends Channel {
     // Override the channel type so partials have a known type
     this.type = 'dm';
     /**
-     * A collection containing the messages sent to this channel
-     * @type {MessageStore<Snowflake, Message>}
+     * A manager of the messages belonging to this channel
+     * @type {MessageManager}
      */
-    this.messages = new MessageStore(this);
+    this.messages = new MessageManager(this);
     this._typing = new Map();
   }