BREAKING change.
The following types are changed from interface to struct type:
- AccessTokenClaims
- IDTokenClaims
- IntrospectionResponse
- UserInfo and related types.
The following methods of OPStorage now take a pointer to a struct type,
instead of an interface:
- SetUserinfoFromScopes
- SetUserinfoFromToken
- SetIntrospectionFromToken
The following functions are now generic, so that type-safe extension
of Claims is now possible:
- op.VerifyIDTokenHint
- op.VerifyAccessToken
- rp.VerifyTokens
- rp.VerifyIDToken
