EZP-23053: Provide more information on FieldType not found exceptions

From [issue](https://jira.ez.no/browse/EZP-23053):
In same way as Limitation Not found exception was improved in #899, provide new exception for missing FieldTypes with more helpful information on how to resolve the issue.
> however this is a separate issue

Yes, true. Then +1 from me given we fix that issue in a follow-up.