Add test for increasing failcounter
Add test for increasing failcounter

Closes #263

jh23453/privacyidea,wheldom01/privacyidea,jalr/privacyidea,jh23453/privacyidea,jh23453/privacyidea,jh23453/privacyidea,wheldom01/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea,jalr/privacyidea,privacyidea/privacyidea,jalr/privacyidea,privacyidea/privacyidea,jalr/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,jalr/privacyidea,wheldom01/privacyidea,wheldom01/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,jalr/privacyidea