[Story]: Add logic to detect if kserve or modelmesh are installed

[lucferbux]

Goal

Add a logic to detect if both kserve and modelmesh are installed in the cluster

Dependency issue

No dependencies

Itemized goals

• Add a custom logic to detect if kserve is installed in the cluster
• Add a custom logic to detect if modelmesh is installed in the cluster

This issue is dependant of #1979

Aspects continued elsewhere

No response

Mocks

No mocks

[lucferbux]

@danielezonca @Xaenalt @andrewballantyne @christianvogt This is one of the technical challenges we've been discussing in the docs, is there a way to figure out if either kserve or modelmesh are installed outside of the CRDs? We need to detect each of them.

[andrewballantyne]

DSC will have the values. opendatahub-io/opendatahub-operator#588 -- this is not likely to be done in time, so we will make a shim layer in our backend to get the Service Account to pull them. The .status of components installed will have your answer.

[lucferbux]

Ok, so we can have a layer for this release to check the status of the controller, and add a follow up to refactor it with the DSC values.