Configure Terrafrom to build all required artifacts in the new GCP project for releases (#4842)
* Remove / change obsolete comments
* WIP
* Add initial Terraform modules
* Add worker pool
* Add trigger_schedule_account module
* Add docker_registry module
* Remove empty modules
* Add xla_docker_build module
* Add version and nightly builds
* Fix any errors that prevented from working
* Add tpu-pytorch project configuration
* Debugging
* Clean-up
* Add libcudnn8 deps for old cuda versions
* Minor
* Minor
* Remove builds for Python 3.7
* Add build step to fetch ansible config at specific branch
* Removed experimental dockerfile and cloudbuild file
* Use current branch for all ansible configs
* Fix a bug and add back triggers for Py3.7
* Update wheels destination
* Add 'Rename and collect wheels' task
* Fix docker copy statement
* Add 'docker_image' suffix to build steps
* Fix renaming wheels, and passing Ansible variables
* Fix build arg flag name
* Debugging
* Put ARG just before run statement
* Wrap ansible vars in single quotes
* Wrap in double quotes
* Debugging
* Fix dockerfiles
* Add a TODO
* Format TF files
* Fix scheduler job url
* Fix public read access for docker repo
* Specify project IAM admins
* Configure IAMs by adding admins
* Configure IAMs for remote build
* Add iam member resource for project_remote_build_writers
* Add trigger for bazel
* Remove bazel trigger