[Feature] kube-vip-cloud-provider loadBalancerClass support

**Is your feature request related to a problem? Please describe.**
The 0.0.2 version of `kube-vip-cloud-provider` used by AKS EE, does not support `loadBalancerClass`.

When creating a LoadBalancer service of class `loxilb.io/loxilb`, the provider continuously attempts to assign an IP to the service but fails.

```
loadBalancer.go:121] Updating service [tcp-lb-onearm], with load balancer IPAM address [192.168.xxx.xxx]
controller.go:275] error processing service default/tcp-lb-onearm (will retry): failed to ensure load balancer: error updating Service Spec [tcp-lb-onearm] :
```

**Describe the solution you'd like**
- Upgrade `kube-vip-cloud-provider` to at least 0.0.10.
- Provide a way enable `KUBEVIP_ENABLE_LOADBALANCERCLASS: true` environment variable

**Describe alternatives you've considered**
Tried applying `kube-vip.io/ignore: true` annotation to the service but only `kube-vip` ignores it. `kube-vip-cloud-provider` continues trying to assign an IP.

**Additional context**
kube-vip/kube-vip-cloud-provider#61 loadBalancerClass feature request.