[Feature Request] Export as / Import by JSON

Hi @xitanggg ,

Thank you so much for your hard work, it helps me a lot!

Please consider to provide a functionality which allows users to export their resumes as JSON files, and then import them to get exact the same contents. It benifits those ones who need to migrate their resumes between different computers.

Currently, the Parser cannot get the result without any issue from the PDF file which downloaded from the Builder.

Looking forward your new features, and once again, THANK YOU!