[TEST] Add paths to profiles to ease features select

Since the change of the [grouped features to spread ones](https://github.com/ezsystems/ezpublish-kernel/pull/889) that the feature files will be all under the same root, 

so instead of having few tags spread all over the features to select the exact ones, we can simplify with paths on the behat.yml and have a simple approach to the feature files.

PS:
the setup wizard feature might look more complicated than before but really it have more tags do identify the seveal possibilities, contemplating the future testing of the SW where it will test all installations in the same suite.
> this feature description does not reflect our users needs btw, features should center on users, not a CI tool

True, but travis machine has MySQL and PostgreSQL and because of that it's needed a extra step, something like:

```cucumber
Given I have more than 1 DB system
When installing eZ Publish through Setup Wizard
Then I have "Choose which database system to use" extra step on Setup Wizard
```