Integrate Codizy into PHP Buildpack

Hi,

We've created a fork which integrate all the needed environment to run Codizy.
Codizy is a SAAS application built to optimize PHP/MySQL applications.

Our solution proposes 4 main features :

- Monitoring
- Analysis
- Profiling
- Optimization

Would it be possible to merge it into the official buildpack ? If Codizy is not used, the dependencies shouldn't have any effect, but add extra functionalities : basically, in addition to the Codizy specific codizy.so module, we add xhprof.so module and ioncube loader module.

Thanks and regards,
  Jocelyn Fournier
Same comment as the other extensions.  Need some easy, global switch for the user to be able to enable / disable the extension.