Resolve external $ref links

[isharko]

Issue type

I'm submitting a (check one):
[ ] Bug report
[x] Feature request
[ ] Regression (something that used to work, but stopped working in a newer version)
[ ] Support request
[ ] Documentation issue or request

Current behavior

Errors out with "ERROR MissingRefError {message: "can't resolve reference https://raw.githubusercont…"}"

Expected behavior

Pull external $ref schemas and combine them with the main schema.

I noticed there's a "TODO: (?) Resolve external $ref links" in the json-schema-form.component file. Any plans on completing this feature?