Automation Tasks Performer...

More automation is needed to recheck but for the very first this is PART-1

  * Utilization of `grunt-wp-i18n`... I will be working for Updating Gruntfile and Coding Standard.
  * makepot directory not removed. @dovy don't remove it I will confirm and will remove after all the automation tasks are great.
  * Rather than placing `.editorconfig` inside codestyle dir moved to root with improvements. codestyle dir still exists. I think PHPStorm.xml is not necessary too. What's the reason behind it? Since `.editorconfig` is universal accepted.
  * All PHP files have been Converted space indentation to tabs according to `.editorconfig`