feat: `dereference.preservedProperties` for preserving data during dereferencing#369

jonluca merged 3 commits intoAPIDevTools:mainAPIDevTools/json-schema-ref-parser:mainfrom

erunion:feat/preserving-dereferenced-propertieserunion/json-schema-ref-parser:feat/preserving-dereferenced-propertiesCopy head branch name to clipboard