Add Zend framework 1

This PR adds a quick version of the benchmarks for Zend Framework 1.

This is modelled after the ZF 2.0 version of the benchmarks https://github.com/TechEmpower/FrameworkBenchmarks/pull/218 and is mostly created the way the zf-tool creates a sample project.

Please review.
@gerardroche After looking at the error, I'm going to upgrade my comment from `Perhaps` to `Yes, it probably will`. The error is that zend framework is not found, because composer fails to install it. Composer fails to install it because composer is not installed itself. So yes, adding that in should get you up and running!