Aggregate all errors on config or schema refs issues #18
Description
Is your feature request related to a problem? Please describe.
Currently when there is an issue with a ref then the first found is returned even if there are multiple issues of the same nature. In case there are multiple issues, many requests will be needed in order to fix all of them instead of understanding everything that's wrong with one request.
Describe the solution you'd like
Collect all errors of the same nature and throw them as a group.
Describe alternatives you've considered
This may be "solved" by the use of the UI which is supposed to be the main way the users will deal with schemas and configurations.