Add remaining Bot API v4.2 changes to the library

Author: camilo.sperberg

src/Telegram/Types/ChatMember.php

@@ -9,7 +9,7 @@
 /**
  * This object contains information about one member of the chat
  *
- * Objects defined as-is july 2017
+ * Objects defined as-is june 2019
  *
  * @see https://core.telegram.org/bots/api#chatmember
  */
@@ -89,6 +89,12 @@ class ChatMember extends TelegramTypes
      */
     public $can_promote_members = false;
 
+    /**
+     * Optional. Restricted only. True, if the user is a member of the chat at the moment of the request
+     * @var bool
+     */
+    public $is_member = false;
+
     /**
      * Optional. Restricted only. True, if the user can send text messages, contacts, locations and venues
      * @var bool

src/Telegram/Types/Message.php

@@ -67,6 +67,13 @@ class Message extends TelegramTypes
      */
     public $forward_signature = '';
 
+    /**
+     * Optional. Sender's name for messages forwarded from users who disallow adding a link to their account in
+     * forwarded messages
+     * @var string
+     */
+    public $forward_sender_name = '';
+
     /**
      * Optional. For forwarded messages, date the original message was sent in Unix time
      * @var int