Implement KatibConfig API #781

Job	Run time
Publish Image (cert-generator, cmd/cert-generator/v1beta1/Dockerfile) / Publish Image	12m 36s
Publish Image (file-metrics-collector, cmd/metricscollector/v1beta1/file-metricscollector/Dockerf... / Publish Image	9m 52s
Publish Image (katib-controller, cmd/katib-controller/v1beta1/Dockerfile) / Publish Image	19m 19s
Publish Image (katib-db-manager, cmd/db-manager/v1beta1/Dockerfile) / Publish Image	8m 14s
Publish Image (katib-ui, cmd/new-ui/v1beta1/Dockerfile) / Publish Image	58m 1s
Publish Image (tfevent-metrics-collector, cmd/metricscollector/v1beta1/tfevent-metricscollector/D... / Publish Image	8m 22s
	1h 56m 24s

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