Follow RFC 7807 when responding with JSONDecodeException

[iisaev-qs]

https://supplyshift.atlassian.net/browse/SUSHI-10300

Main changes:

• JSONDecodeExceptions thrown while decoding request data (body json, get attributes) are now caught and re-thrown as @web.problem annotated RequestDataDecodingException to comply with RFC7807
• DecodeExceptionHandler is removed - uncaught JSONDecodeExceptions will be eventually responded as http 500