Feature Request: Add RealMe to supported sign-in providers

Hi Team!

In New Zealand, we have an official online Government identity called RealMe - https://www.realme.govt.nz/

We use this to authenticate to over 80+ Government departments and organisations including tings like IRD our tax department, Ministry of Health, Universities, Internal Affairs, Passports, etc. It would be amazing if 1Password could do one of the two:

1. Add RealMe to the list of supported sign-in providers that 1Password supports
2. Add the ability for users to create their own custom sign-in providers.

Thanks for an amazing app, and keep up the great work! 😀