Add tokentype to response of /validate/triggerchallenge
Add tokentype to response of /validate/triggerchallenge

Closes #1369

privacyidea/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea