Feedback to support VPC and improve readme

[lionelmace]

Feedback: The README should describe what is created by the Shell script.

• [ ] Move all scripts into script foler

• [x] Adapt script to support both Classic and VPC

• [x] In lib.sh add a line to support VPC

  #my_cluster_url=$(ibmcloud ks cluster get --cluster $my_ic_cluster_name --output json | jq -r .serverURL) # classic
  my_cluster_url=$(ibmcloud ks cluster get --cluster $my_ic_cluster_name --output json | jq -r .masterURL) # vpc

• [x] In provision_cluster-v2.sh, add a line to support VPC

  #classic ingress_address=$(ibmcloud ks cluster get --cluster $my_ic_cluster_name --output json|jq -r .ingressHostname) #classic
  ingress_address=$(ibmcloud ks cluster get --cluster $my_ic_cluster_name --output json|jq -r .ingress.hostname) #vpc

[ADesprets]

We have started to improve the code to support both approach. We are just missing the file storage support on VPC