cluster: GetPlatform: replace CSV list with OperatorExists calls (ope…

…ndatahub-io#1051)

* tests: envtest: Add OperatorCondition CRD

Add OLM's[1] OperatorCondition/OperatorConditionList to the external
CRDs. Will be used in future patches.

[1] https://github.com/operator-framework/operator-lifecycle-manager/blob/master/deploy/upstream/manifests/0.18.3/0000_50_olm_00-operatorconditions.crd.yaml

Signed-off-by: Yauheni Kaliuta <ykaliuta@redhat.com>

* tests: dscinitialization: add OperatorCondition CRD to schema

Following patches will change initialization to list the objects.

Signed-off-by: Yauheni Kaliuta <ykaliuta@redhat.com>

* cluster: GetPlatform: replace CSV list with OperatorExists calls

Jira: https://issues.redhat.com/browse/RHOAIENG-8483

Depending of the way operators installed CSVs can be seen in all
namespace so listing of them causes producing N * M results (where N
is number of namespaces and M is number of CSVs) which is not
scalable in general and in practice causes timeouts on such large
clusters.

The function basically checks if ODH or RHOAI operator installed and
there is already such function in the package, OperatorExists(). So,
reuse it.

Signed-off-by: Yauheni Kaliuta <ykaliuta@redhat.com>

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Signed-off-by: Yauheni Kaliuta <ykaliuta@redhat.com>