Kubernetes deployment support

We need to enable kubernetes deployment mode support for Pythia 

Which means we would need a helm chart we can provide for this and also ensure that Pythia can run as a service in k8s with multiple replicas

Once we have the docker compose for the Pythia stack - we should be able to use a tool like https://kompose.io/
to come up with a helm chart for it (and test it on EKS)