Implement support for Ahoy

see https://github.com/ahoy-cli/ahoy

Unassigning for now as we don't actually have an urgent requirement for this but we may well come back to this soon.

unassigned @jurgenhaas

assigned to @jurgenhaas

mentioned in commit 2ba57b94

mentioned in commit a442ff25

mentioned in commit drupal-8-scaffold-developer@238d3968

closed