fix(#188): Add dump command

[christophd]

• Command reads YAKS related resources on current namespace and dumps information to a file or stdout
• Command can dump everything in a namespace or select resources related to a specific test
• Dump options (file name, output directory) can be configured via yaks-config.yaml
• Users can enable auto dumps after a test has finished in yaks-config-yaml

A Dump includes

• operator instance CRs + pod logs
• test CRs + pod logs
• test configmaps
• jobs + deployments