Create RoboFile from template

[amenk]

We made a customization to create RoboFiles from templates included in the project (we added a robo-pack and lots of sub modules and plan to put sample robo files into them).

Not sure if this template function is useful for the core.

You might want to have a look:

https://github.com/iMi-digital/iRobo/blob/ee3a389/src/Application.php#L39-L119