Feature/add minimal k8s scheduler

[Mtze]

Steps to test

• Start Minikube

  minikube start

• Start API and Queue

  docker compose -f docker-compose.yml -f docker-compose.dev.yml up redi
  s fluentbit hadesAPI

• Start K8s scheduler

  DEBUG=true HADES_EXECUTOR=k8s go run ./HadesScheduler

• Schedule a successful job with bruno
• Schedule a failing job with bruno
• Observe running pods:

  k -n hades-executor get po
  # you may look at the container logs - the "-c 2" indicates that you will look at the second init container which is the build execution container in the bruno example
  k -n hades-executor logs -f <pod name> -c 2