* Initial commit for adding a sample data playground
* Update README
* Add license boilerplate to variables.tf
* Apply linting rules
* rename var to ptoject_id, create prefix var, remove extra zone var
* Adds the option for using an existing project by default
* Bundles all VPC related variables in a single vpc_config variable of type object
* Add encryption_key usage example + policy_boolean
* Add tests, apply linting and todos for upcoming PRs
* Update variables in readme
* Fix formatting via fmt
* Rename test dir to fix module conflict issue
* Add high level diagram and sort vars/outputs by alphabetical
* Modify diagram and update main README under data examples with link / summary
* Line break
* Use png in diagram
Co-authored-by: Ludovico Magnocavallo <ludomagno@google.com>