make PWO v2-compatible

[Diaphteiros]

What this PR does / why we need it:
Transforms the PWO into a v2-compatible platform service.

Which issue(s) this PR fixes:
Part of openmcp-project/backlog#290

Special notes for your reviewer:
Depends on the following PRs (and a following release in the corresponding repositories):

• enable provider webhooks openmcp-operator#195
• feat: extend webhook init logic controller-utils#173

Release note:

The PWO can now be run as a v2 platform service. Note that a non-standard `platformservice` subcommand is required, `task platformservice` can be used to generate a manifest that uses the currently checked-out version as image tag. Existing v1 instances of the PWO don't need any changes when updating to a version containing the new v2 logic.

The configuration has been extended and now takes additional resources users should have permissions for in projects and/or workspaces.

When using PWO as a platform service, the configuration has to be provided as a `ProjectWorkspaceConfig` custom resource with the same name as the `PlatformService`. Webhook configuration which was provided via flags for the v1 deployment has been moved into this resource too. No changes to an existing v1 deployment are required.