[Add support for OAuth2 authentication to API]

OAuth has become the de facto standard for machine to machine auth and automation.  Support for OAuth would also allow the use of multifactor auth with the API across a number of Identity Providers such as Azure AD, just by being able to leverage existing multifactor claims in the JWT.  This would allow a great number of use cases across the board and make the API very robust.

[Authentication option: Azure AD (Oauth)]

This request is to have support for Azure AD based authentication (OAuth) for login to PasswordState.  I feel this would be a robust way to have users login and would allow the use of Azure Conditional Access Polices and Azure MFA.  OAuth is a cleaner implementation than SAML from an administrative perspective and is well supported in modern applications.