Create A Stable Installation Script

[venilnoronha]

Describe the feature request Currently, there are 2 ways of installing the adapter i.e. by curling the manifest YAML or the released Helm chart. Also, installation procedure varies by patch versions i.e. 0.1.0 and 0.1.1. Also, since the master branch is used for active development, we currently rely on the 0.1.0 tag for stable installation instructions. All of this creates room for confusion.

Therefore, we should have a dowloader script at an accessible location i.e. on the master branch which can automatically download configuration from the latest stable release.

Additional context See the Istio installation instructions for an example.