Yet another improvement to development process

[kispaljr]

This PR contains:

• FIX for a prow issue introduced by Improvements in the development process #72
• new make target called destroy that deletes the current porch deployment
• better strategy to keep (kpt) state between porch deployments (instead of trying to preserve the resourcegroup.yaml file)
• use server-side apply for porch deployments
• do not build container images of locally running processes
• fix function-runner IP address in .vscode/launch.json

WARNING: unfortunately the new porch deploy method conflicts with the old one, so you have to delete and recreate your kind cluster after this change is merged into your local setup.

[kispaljr]

/retest

[pauldennehy]

/approve

[liamfallon]

/approve
/lgtm

[nephio-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kispaljr, liamfallon, pauldennehy

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