Add helm chart for OpenEBS

[kmova]

OpenEBS can be installed on any kubernetes cluster using kubectl commands as explained here: http://openebs.readthedocs.io/en/latest/getting_started/quick_install.html

The required k8s yaml files are located at : https://github.com/openebs/openebs/tree/master/k8s

We would like to add support deploying OpenEBS on K8s cluster via helm charts https://github.com/kubernetes/helm

Reference implementations:
https://github.com/rook/rook/tree/master/cluster/charts/rook

[kmova]

I have got the initial version of the helm chart for openebs here: https://github.com/kmova/bootstrap/tree/master/helm

When testing on my minikube, I am hitting the following issue:
helm/helm#2224

[kmova]

With the above PR #659, I am able to deploy openebs using helm chart:

vagrant@minikube-dev:~/openebs/k8s/charts/openebs$ helm ls         
NAME   	REVISION	UPDATED                 	STATUS  	CHART        	NAMESPACE
openebs	1       	Wed Oct 18 17:52:32 2017	DEPLOYED	openebs-0.0.1	default  
vagrant@minikube-dev:~/openebs/k8s/charts/openebs$ 

The next steps will be to:

• Find a way to host the chart on a webserver
• Provide examples of deploying application using helm charts that use openebs volumes.