Progress on the deployment of multiple replicas of immudb database on Kubernetes

```Error: execution error at (immudb/templates/statefulset.yaml:2:4): 
At the moment, you can just have 1 instance of immudb. We are working to raise that limit.
```

**Support for replicas for Kubernetes deployments**

**Data redundancy is an useful feature**

**Evaluating `immudb` for production**