Added the possibility to configure the node modules path in tests

[stof]

This allows to run the testsuite when the node_modules cannot be auto-detected (it looks like the globally installed packages using the Ubuntu setup are not in a path looked by require by default, and the current folder is not a parent of the temp folder where the server script gets created, meaning that both the global and local installs are not working without some config on my Ubuntu setup)

[aik099]

The locally installed Node modules won't work for sure knowing that we create actual Zombie server file in temp folder and that's where it looks for them 😉

Good to merge.

[nonlux]

Locally installed zombie is working, if add it in node_modules_path.
But it work only with absolute path.
Maybe add support for relatives path?

[aik099]

Relative to what folder exactly? I guess path is absolute because relative path would be calculated from driver location which is /vendor/behat/.....

[nonlux]

I think relative path from path of cli execution.
We can't inject it. But we can get it in getpwd().
It may be hardcode.
But the library will not require global installation for zombie.js

[nonlux]

Oh! Sorry I am not about test suite, I am about Zombie driver. Create new issue ?

[aik099]

Just send PR right away, no need to create issue.

[nonlux]

Ok )