Support for Liveliness probe

[MobashirAfzal]

Is your feature request related to a problem? Please describe.
Kubevip doesn't seems to have support for liveliness probe. In case kubevip runs into a problem without it being crashing, restart of of kubevip container will not be triggered by the kubelet.

Describe the solution you'd like
An endpoint which can be used by kubernetes for liveliness probe.

Describe alternatives you've considered
Considering to use metrics endpoint for liveliness probe. But that may not serve the purpose and may mislead kubernetes.

Additional context
none