Kafka admin ACL API breaks compilation

[wtrocki]

ACL api filters are not properly designed in Openapi doc generating empty files and breaking compilation.

• Imports are missing for filters (I have added them manually for the moment):

There is openapi bug that solves code compilation problem:
OpenAPITools/openapi-generator#8815

However entire ACL API is not usable:
ACLfilters should be generated as strings but they are just empty classes.
We need to report that to the backend team and entire filtering should be refactored in schema as it is not working

Originally posted by @wtrocki in #76 (comment)

[wtrocki]

Examples of class that should be string
https://github.com/redhat-developer/app-services-sdk-java/blob/main/packages/kafka-instance-sdk/src/main/java/com/openshift/cloud/api/kas/auth/models/AclOperationFilter.java

CC @craicoverflow @secondsun

[wtrocki]

Follow up updates will not break it as we have added those files to openapiignore however we should look to clarify and fix this with the kafka team.