* Consolidate variable definitions to `kargo-defaults`.
* Set `AlwaysAllow` as the default authorization mode.
* Ability to set multiple authorization modes.
* Various style fixes and typos
Operator can specify any port for kube-api (6443 default) This helps in
case where some pods such as Ingress require 443 exclusively.
Closes: 820
Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>