⚠️ Add TypedReconciler

[alvaroaleman]

This change adds a TypedReconciler which allows to customize the type being used in the workqueue. There is a number of situations where a custom type might be better than the default reconcile.Request:

• Multi-Cluster controllers might want to put the clusters in there
• Some controllers do not reconcile individual resources of a given type but all of them at once, for example IngressControllers might do this
• Some controllers do not operate on Kubernetes resources at all

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alvaroaleman

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[alvaroaleman]

/hold
This needs some more testing

[k8s-ci-robot]

@alvaroaleman: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-controller-runtime-apidiff	35fd053	link	false	/test pull-controller-runtime-apidiff

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