[release-4.14] Adds proxy for Provider mode backend in ConsolePlugin

[openshift-cherrypick-robot]

This is an automated cherry-pick of #361

/assign iamniting

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[openshift-ci]

@openshift-cherrypick-robot: 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/odf-operator-e2e-aws	cc5be1c	link	true	/test odf-operator-e2e-aws

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[leelavg]

taken in #369