Fix support for examples.
Fix support for examples.

Allow description, example, translation to be defined when schema is a $ref.

jlblcc/json-schema-viewer,adiwg/mdTools,adiwg/mdTools,foxxyz/json-schema-viewer,foxxyz/json-schema-viewer,jlblcc/json-schema-viewer,amitdesai03/json-schema-viewer,amitdesai03/json-schema-viewer,jlblcc/json-schema-viewer