feat(block): add command line executor block

[jgranesa]

Summary

Brief description of what this PR does and why.

Fixes #(issue)

Type of Change

• [ ] Bug fix
• [x] New feature
• [ ] Breaking change
• [ ] Documentation
• [ ] Other: ___________

Testing

How has this been tested? What should reviewers focus on?

Checklist

• [x] Code follows project style guidelines
• [x] Self-reviewed my changes
• [ ] Tests added/updated and passing
• [x] No new warnings introduced
• [x] I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

Screenshots/Videos