Create Affinity.md in all package/docs

Packages:

• Istio Operator
• Istio Controlplane
• Monitoring
• ECK Operator
• Elasticsearch Kibana
• Fluentbit
• OPA Gatekeeper
• ArgoCD
• Cluster Auditor
• KeyCloak
• Twistlock
• Anchore Enterprise
• Authservice
• GitLab
• GitLab Runner
• Sonarqube
• Mattermost
• Mattermost Operator
• MinIO
• MinIO Operator
• Velero