dereference + async

[imsamurai]

Hi, main goal this MR is dereference. But i think it's not ok to implement it separately from main logic, so what i made is:

• fix bug with copy to paths properties that not start with /
• make lib async (there was callback that doesn't work)
• add oprion dereference for dereference $refs
• fix dereference call to proper handle relative $ref path
• do not ignore parse/dereference errors
• update readme
• update tests
• new test for dereference
• fix info, openapi and security properties in organize

[daniloab]

can you reference or create an issue that explains the motivation of this pr?

[imsamurai]

The main goal is abillity to dereference $refs. Also pr contains few fixes that described above

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[menocomp]

I am looking at a way to dereference as well.
Any update on that.