Support usage of Numaplane without ArgoCD

[juliev0]

Summary

There is a desire to use Cloud Workspaces to create a development environment on a VM where there is a k3d environment running.

What @kohlisid has in mind is that when somebody spins up one of these, it would deploy the Numaflow AddOn, and then deploy everything identical to that which is being deployed to other environments. While Cloud Workspaces does not require the "no data loss" features of Numaplane, the deployment through this means is seen as being more seamless.

There is no ArgoCD. One issue I can think of is that we no longer have the Sync Waves in that case. This would mean that a Pipeline can in fact be deployed without a corresponding isbsvc, and thus would enter a "Failed" state.

Perhaps, we could add a check before creating a Pipeline that the isbsvc exists and has been fully reconciled.

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[juliev0]

cc @xdevxy FYI.

BTW, @kohlisid and I did discuss the potential of not using Numaplane at all, but that seemed less seamless (he would need to go fetch the numaflow manifest himself, he would deploy differently from the other environments).