Extract deployment diagram snapshot via kubernetes/openshift api

[maxandersen]

As a contributor and support I would like to document and understand how the system is physically and optimally logically deployed.

We could manually keep a diagram uptodate but it very easily get tedious and probably incorrect.

More interesting if we could extract deployment diagram using the k8 api and generate a plantuml diagram like this (not representative, just example):

source for the above is here.

Not all info is directly available in k8 api (like that core is using external db etc.) but the idea is we could add labels/annotations or even an external .puml file to add any interesting metadata.

[kbsingh]

cc @pbergene as something we might want to track in the service docs as well