Delete the new-project module to support adoption of TPG v6

[RachaelSTamakloe]

This pr does the following:

• It removes the new-project module from the Cluster Toolkit and leaves behind a directory that contains only a community/modules/project/new-project/README.md file that recommends the use of the upstream module (terraform-google-project-factory) to create and manage GCP projects.

The new-project module has been marked experimental since its introduction in November 2021 and it is not present in any customer-facing examples. The module, as written(using version 11.3), blocks adopting TPG 6.x support.

Submission Checklist

NOTE: Community submissions can take up to 2 weeks to be reviewed.

Please take the following actions before submitting this pull request.

• Fork your PR branch from the Toolkit "develop" branch (not main)
• Test all changes with pre-commit in a local branch #
• Confirm that "make tests" passes all tests
• Add or modify unit tests to cover code changes
• Ensure that unit test coverage remains above 80%
• Update all applicable documentation
• Follow Cluster Toolkit Contribution guidelines #