Update models.py
Update models.py

Adding version-of and funded-by
relationship options

Royal-Society-of-New-Zealand/NZ-ORCID-Hub,Royal-Society-of-New-Zealand/NZ-ORCID-Hub,Royal-Society-of-New-Zealand/NZ-ORCID-Hub,Royal-Society-of-New-Zealand/NZ-ORCID-Hub