Add development script to quickly test VPA in kind cluster

[omerap12]

Which component are you using?:
/area vertical-pod-autoscaler

Is your feature request designed to solve a problem? If so describe the problem this feature should solve.:
Currently, setting up a local VPA instance for testing requires multiple manual steps that can be time-consuming and error-prone. When testing changes in a branch, users need to manually build the components, deploy them to their cluster, and configure the necessary dependencies. This process should be streamlined with automation.

Describe the solution you'd like.:
A development script that would:

1. Build VPA components from the current branch
2. Automatically load the built images into kind cluster using kind load docker-image
3. Deploy metrics-server if not present
4. Deploy VPA components with the correct image references for kind

The script should use kind as the target cluster and handle all the kind-specific requirements (like image loading) automatically. This would allow developers to quickly iterate on their changes with minimal manual intervention.

Describe any alternative solutions you've considered.:

Additional context.:
This would greatly simplify the local development workflow for VPA, especially since kind is a common choice for local Kubernetes development. The script would ensure that images are properly loaded into kind, which is a step that's often forgotten or done incorrectly.

[adrianmoisey]

/assign