[Feature] Export as JSON-Resume compatible JSON (with latest version of JSON-Resume)

[CyberFoxar]

Is there an existing issue for this feature?

• Yes, I have searched the existing issues and it doesn't exist.

Feature Description

This is an awesome project, that could be made even more awesome if it were compatible with the various interchange formats for JSON and more.

It seems the app used to support JSON-Resume, but does not fit with the latest schema revision.

Adding JSON-Resume support

I suggest adding an option to export JSON as JSON-Resume / https://github.com/jsonresume/resume-schema a somewhat active initiative to make reusable data structure for resumes.

The expected schema is also nearly alike to the schema already output by the current JSON exporter, expect that you'd need to remove most formatting informations and shuffle some of the sections around.