Change object to baseObject

[yiqiang]

As in php7.2 object is restricted word and causing Fatal error: Cannot use 'Object' as class name as it is reserved, hence we need to change for yii2 version 2.0.13.1

class LinkColumn extends \yii\base\Object

to

class LinkColumn extends \yii\base\baseObject

Please check and update, thank you

[ZAYEC77]

excuse me for large delay
@yiqiang could you check the updated version?