DoctrineFixturesBundle

This PR aims at adding DoctrineFixturesBundle.

### Note:
As an example of fixture see the following code [10-Macroareas.php](https://github.com/innova-re/inputdata/blob/master/src/Innovare/ModelBundle/DataFixtures/ORM/10-Macroareas.php)
### References:
1. [DoctrineFixturesBundle](http://symfony.com/doc/current/bundles/DoctrineFixturesBundle/index.html)
2. [How to Generate Entities from an Existing Database](http://symfony.com/doc/current/cookbook/doctrine/reverse_engineering.html)