Add subroutine to initializer to create an IDP resource and patch the `WorkspaceType`

[aaronschweig]

Current State:

As described in the Epic, currently the account operator blindly sets a reference to a WorkspaceAuthenticationConfiguration when creating a WorkspaceType.

We want to change that behaviour.

Goals:

• Add a new subroutine to the initializer that creates an (TBD) IDP resource on org creation
• Make sure that resource reaches a successful state
• Create a WorkspaceAuthenticationConfiguration and patch the corresponding WorkspaceType
• Mark the initialization as complete once all the above are successful