* add util for handling wrapped/raw google api errors
* add 404 error handling to shared iam files
* fix errwrap calls in iam files
* fix import
* remove newlines, clear ID for removed state in iam binding
Add consistency for for IAM imports.
- Adds imports for projects, folders, crypto keys, organizations, and key rings.
- Anything else with IAM can implement a simple method and begin working immediately.
- Add tests for all the IAM imports.
- Import documentation for IAM resources.
* Refactor project iam binding and member resources to improve reusability
* Use default mask when updating project iam policy
* Add a doc comment for the ResourceIamUpdater interface
