[POC] Add local mode

[nrfox]

Describe the change

Adds the ability to run Kiali locally.

Steps to test the PR

1. Checkout PR
2. make build-ui. At least in this POC, you need to build the ui first before running.
3. hack/run-integration-tests.sh --test-suite backend --setup-only true. Only using this to setup the environment. You can delete the Kiali in the cluster after the script finishes to prove a point.
4. go run kiali.go open

go run kiali.go --help open to see options. You can provide a Kiali kubeconfig file to set any options.

Also works with multi-cluster. Sometimes the CLUSTER_ID in istio does not match the name in your kubeconfig. For these cases you can provide aliases in the Kiali config file.

# kiali-config.yaml
deployment:
  cluster_name_overrides:
    kind-east: east
    kind-west: west

1. hack/run-integration-tests.sh --test-suite frontend-multi-primary --setup-only true. Again you can delete the Kiali.
2. go run kiali.go -remote-cluster-contexts kind-west -config kiali-config.yaml open

Automation testing

N/A - POC

Issue reference

POC for #8263