Added mongo extension via pecl and use ppa for php

[wdalmut]

Just added php.mongo state and allows anyone to use ppa instead the default repository

In your state file:

include:
  - php.mongo

In your pillar:

php:
  use_ppa: True

[gravyboat]

@wdalmut Good stuff, thanks! Could you update the example pillar with your example posted here?

[wdalmut]

Yes absolutelly! Just let me a sec