* Support extending KubernetesCluster in extensions
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Simplify getItemsByEntityClass
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Make apiVersion string.
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Improve entity loading for extension custom types.
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Improve comment.
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Fix lint.
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Properly handle loading custom entity in cluster-frame
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Avoid .bind with .loadOnClusterRenderer
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Fix lint.
Signed-off-by: Panu Horsmalahti <phorsmalahti@mirantis.com>

* Revert style change.

Signed-off-by: Panu Horsmalahti <pho...