Cherry pick of #212: Introduce setters for name and namespace

[justinsb]

Cherry pick of #212 on release-0.11

212:Introduce setters for name and namespace

Edited to remove release notes for future release and to continue to expose underlying variables (for compatability).

[justinsb]

/assign @barney-s

I think if we're going to maintain older branches (which I think we can/should), then we need PRs like this which avoid too much reworking of other cherry picks.

Also I have a nice (IMO) script/tool that I'm working on for these that I can share with you :-)

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: justinsb, yuwenma

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[yuwenma]

As kubebuilder-declarative-pattern usres, I'm looking forward to these Setter methods.

[justinsb]

Thanks @yuwenma - you should be able to say /lgtm for the robots to auto-merge the PR

[yuwenma]

/lgtm