enable Open telemetry support for descheduler

1. Enable OTEL configuration and base framework
2. update generated conversion spec
3. enable docker based conversion and deep copy generate
4. fix broken unit tests

charts/descheduler/values.yaml

@@ -82,6 +82,13 @@ deschedulerPolicy:
   # maxNoOfPodsToEvictPerNamespace: 10
   # ignorePvcPods: true
   # evictLocalStoragePods: true
+  # tracing:
+  #   collectorEndpoint: otel-collector.observability.svc.cluster.local:4317
+  #   transportCert: ""
+  #   serviceName: ""
+  #   serviceNamespace: ""
+  #   sampleRate: 1.0
+  #   fallbackToNoOpProviderOnError: true
   strategies:
     RemoveDuplicates:
       enabled: true