Allow run workflow command to execute quality gate

Current situation

When using quality gate service in a GitLab pipeline, one must first run the workflow with the respective command, retrieve its ID into a variable, then pass this variable to the get qualitygate command. It will be interesting to have the possibility to get the quality gate results for a workflow by simply executing run workflow command.

Desired outcome

If the opentf-ctl run workflow command contains the --mode option, the respective quality gate will be applied to the workflow upon its successful completion.

Another get qualitygate command options can also be passed to the run workflow command, as --plugin option, etc.