* Merged all components into one main file.
* rename datasource folder to resources
* resources output added for:
* datamart-bigquery-datasets-list
* dwh-bigquery-datasets-list
* landing-bucket-names
* landing-pubsub-list
* transformation-bucket-names
* Change the project ID with a link to the module
* add support for IAM roles to the datasets created
* Removed unused local variable module_version
* Moved from access and access_identities to IAM.
* Update README.md
Co-authored-by: lcaggio <lcaggioni@google.com>