DX-5138: EOL for Drupal Minimal Project, move extra config options to ACMS

[danepowell]

In the near future ACMS v2 will change how sites are installed to use a CLI wizard rather than getting all functionality out of the box. This could allow us to EOL the Drupal Minimal Project since the main difference between Drupal Minimal and Recommended projects is the number of Composer packages required, and with ACMS v2 OOTB you get no additional packages.

If we move some of the supporting files and templates (phpunit config, example tests, etc) to ACMS via CLI options, then Drupal Recommended Project essentially becomes a minimal project, and all the additional functionality comes via CLI options.

Killing Drupal Mimimal Project is good because it will simplify the onboarding customer journey and reduce the potential for confusion.

Here's the feature branch to switch to ACMS v2: https://github.com/acquia/drupal-recommended-project/tree/113-acms-v2

Need to coordinate this as a major release with ORCA