add active operation cache

[deads2k]

Creates a local cache for active operations and uses it for triggering operation controllers instead of each doing live lookups.

[openshift-ci]

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[deads2k]

/retest
/hold

[openshift-ci]

@deads2k: 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
ci/prow/e2e-parallel	624e296	link	true	/test e2e-parallel

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[deads2k]

closing in favor of #3955