Filter pipeline steps by component type

[philipp94831]

Currently it is possible to filter steps to deploy by providing their names via --steps. It would be nice to also be able to filter steps by type, i.e., specifying any class in the component hierarchy (KubernetesApp, HelmApp, MyCustomApp) and all steps that are an instance of these classes are deployed

[disrupted]

Depends on #528, e.g. --filter type=...