Add terraform 'no command' rule (#1317)

* Add terraform 'no command' rule

* Feedback from PR

Co-authored-by: Joseph Daniel <jdn@logpoint.com>

README.md

@@ -332,6 +332,7 @@ following rules are enabled by default:
 * `switch_lang` – switches command from your local layout to en;
 * `systemctl` – correctly orders parameters of confusing `systemctl`;
 * `terraform_init.py` – run `terraform init` before plan or apply;
+* `terraform_no_command.py` – fixes unrecognized `terraform` commands;
 * `test.py` – runs `py.test` instead of `test.py`;
 * `touch` – creates missing directories before "touching";
 * `tsuru_login` – runs `tsuru login` if not authenticated or session expired;