WIP: Parallel cucumbers

[MarcelloPerathoner]

Issue

Fixes #7307 - CI runs up from 0:45h to 4:30h

Diagnose: The current version of cucumber creates a "world" for every scenario. We have 1370 scenarios. Each world initializes an environment and a cache. Each cache init reads all osrm binaries and all lua profiles to create an md5 hash to use as cache id. This takes a long time on a server with NAS.

Changes:

• refactor cucumber to run tests in parallel
• made env a global, init it only once
• use package wait-on to wait for osrm-routed ready
• refactor lots of callbacks into promises and straight intelligible code
• CI build times are down to 0:25h

TODO: clean up and remove some unrelated stuff

Tasklist

• CHANGELOG.md entry (How to write a changelog entry)
• update relevant Wiki pages
• add tests (see testing documentation)
• review
• adjust for comments

Requirements / Relations

Link any requirements here. Other pull requests this PR is based on?