[stress testing][s] Improve documentation on container debugging

This should be geared at beginner to intermediate users and show how to do basic development of stress tests in a container:

Basic:
- Build/Run container locally
- Run commands in local container
- Run interactive commands in k8s container
- Get/tail/query container logs (local via `kubectl log` and longer duration via log analytics)

Intermediate:
- Hook up local container to vscode remote
- Hook up k8s container to vscode remote
- Update k8s container spec to allow file updating, debugger entrypoints, etc.