As a cluster admin installing an extension, I would like to configuration registry+v1 bundle installations much in the same way I could with v0's Subscription's .spec.config, because I would like to deploy the extension in a way to better matches my cluster's peculiarities (e.g. ensure the extension's pods end up on specific infrastructure, use more/less resource, etc.)

A/C:

• SubscriptionConfig added to the BundleConfig schema used to validate the ClusterExtension's .spec.Config
• User-given values are validated against the SubscriptionConfig schema
• calls to registry+v1 renderer updated with WithSubscriptionConfig option