add remove resource subcommand

[narg95]

What it does

It adds kustomize edit remove resource command.

Usage:
  kustomize edit remove resource [flags]

Examples:

		remove resource my-resource.yml
		remove resource resource1.yml resource2.yml resource3.yml
		remove resource resources/*.yml

It closes issue #873

[narg95]

/assign @monopole
/assign @Liujingfang1

[monopole]

nice job on the tests.
nice job allowing room for more remove subcommands
thanks!

[monopole]

/lgtm

[kbhawkey]

Hi. After a quick read of the tests, is remove, removing items from the kustomization file?
See lines 28 and 38.

[narg95]

@monopole you are welcome!

[k8s-ci-robot]

New changes are detected. LGTM label has been removed.

[k8s-ci-robot]

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[monopole]

/lgtm (fixed the to/from issue mentioned by @kbhawkey )