Add comprehensive OpenShift cluster destroyer script

- Safely destroys OpenShift clusters on AWS with all associated resources
- Supports multiple destruction methods: openshift-install and manual AWS cleanup
- Handles orphaned clusters without state files
- Includes dry-run mode for preview without deletion
- Comprehensive resource counting and detailed listing
- Route53 DNS and S3 state cleanup
- Safety features: confirmation prompts, detailed logging
- Auto-detects infrastructure ID from cluster name
- Properly counts nested VPC resources (subnets, security groups, etc.)

Author: nogueiraanderson