Disabled by default to avoid breaking changes for upcoming release,
although minor will be enabled by default.
Using the new `--allow-ingress-hostname-collision` flag Capsule can
ignore the Ingress hostnames collision allowing the Cluster
Administrator to put in place a non-opinionated hostnames allocation.
Modified CRD to support Owner struct.
Added Tenant name validation webhook.
Rewrote owner_reference hook logic.
Updated and added new e2e tests.
Co-authored-by: Maksim Fedotov <m_fedotov@wargaming.net>