auth
auth/.hgignore
Fill in gaps in AuthorizationCodeStore tests, add authCodeGrantValidate tests. Fill in some holes in AuthorizationCodeStore tests (mainly the lack of ProfileID and Used being compared, and the omission of useAuthorizationCode in the TestauthorizationCodeStore test). Start testing the authCodeGrantValidate function, that tests a grant claim made using an AuthorizationCode. Right now, we're only testing that omitting a code yields an invalid_request error.