Create basic installer script / loop

The installer needs a main "loop" that will iterate over a list of component operators (mobile developer console, push server, keycloak, mobile security service), and versions for each.

All services are installed into a single namespace.

Each item needs the following tasks :

• Install CRDs
• Install the operator
• Install the minimal service CRs

The script is not concerned with monitoring the operator or the CRs. It assumes that they will work.