Filter oneOf, anyOf, and additionalProperties errors

[lucas-koehler]

Is your feature request related to a problem? Please describe.
Ajv errors with keywords anyOf, oneOf, and additionalProperties do not have value to show in the UI and can even cause confusion. E.g. an additionalProperties error might be shown on a property within a oneOf because the property doesn't match another, currently not selected schema.

Describe the solution you'd like
In packages/core/src/reducers/core.ts errorsAt errors with the above mentioned keywords should be filtered.

Describe for which setup you like to have the improvement
This is universal as it's part of the core