WIP: Add ilab project selector modal

[caponetto]

Description

See https://issues.redhat.com/browse/RHOAIENG-20120

Note: This PR is open for early feedback but still WIP since I'm seeing Error communicating with pipeline server as the value of ilabPipelineLoadError while the ilab pipeline is being loaded. This makes one of the warning alerts to be shown temporarily. See the video below when I select the ilab project:

RHOAIENG-20120.mov

How Has This Been Tested?

Add the StartRunModal component somewhere in the code and select the projects.

Test Impact

Coverage still to be evaluated ...

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[openshift-ci]

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