Add regex support for Replacement selectors

[sda399]

• re-implement replacement target selector with regex support, in the patch selector spirit
• isolate select and reject functions to a new specialized struct
• related issue Replacement with regex support for selectors #5862

resolves: #5862

[linux-foundation-easycla]

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• ✅ login: sda399 / name: zepard (f1af7ad, 2a6481b, 8f75c39, dc0344b)

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[k8s-ci-robot]

This PR has multiple commits, and the default merge method is: merge.
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[sda399]

/label tide/merge-method-squash

[koba1t]

/ok-to-test

[sda399]

Added some examples for regex usage in krusty

edit: @koba1t @stormqueen1990 @ncapps open for discussion, any insight or feedback would be welcome, on feature or the implementation itself.
I can be available on other channel of communication, just let me know. 👍 :):

[sda399]

I've made a KRM function out of this PR. maybe it'll help trying it on existing code base for regression tests.

https://github.com/sda399/kustomize-functions/tree/main/functions/replacement-extra

[koba1t]

Hi @sda399
So sorry to delay review.
Based on my local testing, it doesn't appear to have regression issues, so I believe it's fine.

/lgtm
/approve

Please prepare a PR to update the documentation!
https://github.com/kubernetes-sigs/cli-experimental

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: koba1t, sda399

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