Create an easy way to control escaping

[predominant]

Currently there is no simple way to turn off escaping, without modifying code in the plugin.

There are 2 nice solutions:

1. Auto-escaping should default to on (this already exists)
   • Turn off auto escaping based on a Configure setting
   • Example: Configure::write('TwigView.autoescape', false);
2. Allow user-defined loading of Twig Extensions
   • This would allow more flexibility for other situations
   • It will allow the use of the Escaper Extension which can turn on and off escaping easily.