Added missing field labels conversion functions for kinds:
- ConfigMap
- DaemonSet
- Deployment
- Endpoints
- Event
- Ingress
- Job
- PersistentVolume
- PersistentVolumeClaim
- ResourceQuota
- Secret
- Service

Completed conversion functions of few other kinds:
- Namespace
- ServiceAccount

Added tests suite for the above.
Signed-off-by: Michal Minar <miminar@redhat.com>