Create a few sample custom sizing configmaps without parameterizing about cp4waiops-gitops

[gyliu513]

@morningspace does the custom sizing depend on resource locker? We may not able to GA this feature if it depends on resource locker as it is another open source component.

[morningspace]

@gyliu513 The reason it still has resource locker after switch to configmap is that the current configmap does not cover all cases which are originally covered by the resource locker, i.e.: configmap only addressed a subset of the custom sizing needs addressed by resource locker.

While I believe the configmap approach should be improved to cove all cases in the coming releases, for now in this release, I think we have a couple of options:

• To indicate in docs (previously I put it in tech-preview folder before the final version of the repo layout) that the custom sizing gitops configuration is just a sample configuration which will not be officially supported and subject to change comparing w/ other gitops configuration in this repo. So, we split it out and let customer know that's not part of GA feature.

• To remove resource locker from the current x-small gitops configuration and make this as part of GA feature as well. This will loose some custom-sizing capabilities which are originally supported when using resource locker.

• To keep the resource locker configuration along w/ the custom sizing configmap but provide a switch (turned off by default) in values.yaml w/ clear note that only the configmap is officially supported, while the resource locker configuration is just a sample to extend the custom sizing capability to cover more cases which will not be officially supported and subject to change. Customers should be aware of this before they turn it on.

[morningspace]

@lihongbj