Add Zalando postgres-operator

[pulledtim]

No description provided.

[wistefan]

Why is it required to install the operator as "non-helm" in the local and test env? For a sequential startup, you could add a new execution to the helm-maven-plugin and render the operator into the infra folder. With the current solution, none of the two DB installations supported by the DSC is tested.

[pulledtim]

Why is it required to install the operator as "non-helm" in the local and test env? For a sequential startup, you could add a new execution to the helm-maven-plugin and render the operator into the infra folder. With the current solution, none of the two DB installations supported by the DSC is tested.

Now deployed as separate step. Used the dsc chart as source to avoid multiple dependency versions while avoiding externalizing the dependency version.