Add password complexity requirements
Add password complexity requirements

This replaces the broken home-baked functionality that worked in previous versions.  Per https://docs.openstack.org/keystone/pike/admin/identity-security-compliance.html
pgraziano/ursula,blueboxgroup/ursula,blueboxgroup/ursula,blueboxgroup/ursula,pgraziano/ursula,pgraziano/ursula,pgraziano/ursula,blueboxgroup/ursula