Improvements in the development process

[kispaljr]

This PR contains the following improvements:

• updated documentation explaining the improved development process
• fix a bug that prevented running porch with a local porch-server on Docker Desktop setups (e.g. MacOS)
• docker image builds work even if the git repo is cloned into a directory named other than "porch"
• add new make targets: run-in-kind-no-server, run-in-kind-no-controller, deployment-config-no-server, deployment-config-no-controller
• improve caching during controller docker image build
• better detection of a Docker Desktop setup
• dev-env setup script moved to ./scripts
• dev-env setup script doesn't install porch anymore.
  (It can be done instead by the make targets: run-in-kind, run-in-kind-no-server, run-in-kind-no-controller)
• make help is now more verbose

[kispaljr]

/retest

[liamfallon]

This is great @kispaljr, It's a nice approach to use the latest deployment and then remove the bits that are being developed locally rather than doing a separate deployment for development. Allowing the developers to select and easily switch between the parts they want to develop on is really useful.

I ran all the make targets locally and it all works fine for me.

[liamfallon]

/lgtm
/approve

[liamfallon]

/approve
/lgtm

[nephio-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[liamfallon]

This PR must be caught in Tide