apikeeper-4 Domain module initialization
Merge remote-tracking branch 'origin/issue-apikeeper-4' into issue-apikeeper-4

Conflicts:
	com/apikeeper/oauth2/domain/src/main/scala/com/apikeeper/oauth2/domain/flow/authorization/response/error/AccessDeniedErrorResponse.scala
	com/apikeeper/oauth2/domain/src/main/scala/com/apikeeper/oauth2/domain/flow/authorization/response/error/InvalidRequestErrorResponse.scala
	com/apikeeper/oauth2/domain/src/main/scala/com/apikeeper/oauth2/domain/flow/authorization/response/error/InvalidScopeErrorResponse.scala
	com/apikeeper/oauth2/domain/src/main/scala/com/apikeeper/oauth2/domain/flow/authorization/response/error/ServerErrorResponse.scala
	com/apikeeper/oauth2/domain/src/main/scala/com/apikeeper/oauth2/domain/flow/authorization/response/error/UnsupportedResponseTypeErrorResponse.scala
	com/apikeeper/oauth2/domain/src/main/scala/com/apikeeper/oauth2/domain/flow/refreshaccesstoken/RefreshAccessTokenRequest.scala
apikeeper-4 Domain module initialization