The idea is to make adapterOverrides structure in all our CRs accept arbitrary data by setting the additionalProperties attribute. As a result, we'll significantly reduce the CRD sizes and simplify the process of extending the adapter overrides.
One important precondition is having a validation webhook in place to check the overrides structure. Since override attributes are the same for all components, validation can be implemented as a common method for all webhooks.

The first mention is in #774 (review)