Deploy Helm Apps

# Requirement

* Given a the deployment model, specify a Helm Application to be deployed.
* "Any" application from https://hub.kubeapps.com/ should be deployed automatically.

# Design

* Specify the name of the `Helm Chart` to deploy
* Identify the type of ingress instance the cluster contains
* Use default `ingress nginx`
* This provides a default ingress to the cloud provider
* Identify if the cluster has `tls secret`
* This provides HTTPS access to the service
* Identify if the cluster has `external-dns `
* This provides Route53 endpoint to the service

Start by locating the deployment model and the Helm application deployment entry point; the issue does not name specific files or tests. Define what “any” Kubeapps application means, then verify that chart selection, default nginx ingress, TLS secrets, and external-dns are handled before considering the deployment complete.

Written by the indexing model from the issue text.