Set NEW_USER ROLE in tempest_heat classic user
Set NEW_USER ROLE in tempest_heat classic user

Else it fails when member is not the default role.

Change-Id: I1c830705b94a116ef56d83ebcd59145cd40e59a5
Signed-off-by: Cédric Ollivier <d48310251a4a484d041bc5d09a9ac4d86d20f793@orange.com>

opnfv/functest,opnfv/functest