heat tests : functional test utils add StackBoto class
heat tests : functional test utils add StackBoto class

Add StackBoto, subclass of Stack, which implements stack
setup using the boto client wrapper, allows us to test
AWS auth and boto client libraries

Ref #220

Change-Id: Id5cb5ab72c7ba2e7accd76a73a94ff8fe45c62fa
Signed-off-by: Steven Hardy <4d1810d1ff6d7f22d774341c4549c02173d2f2ab@redhat.com>

maestro-hybrid-cloud/heat,ntt-sic/heat,noironetworks/heat,rickerc/heat_audit,NeCTAR-RC/heat,takeshineshiro/heat,redhat-openstack/heat,dragorosson/heat,varunarya10/heat,Triv90/Heat,varunarya10/heat,steveb/heat,gonzolino/heat,Triv90/Heat,cryptickp/heat,pshchelo/heat,miguelgrinberg/heat,JioCloud/heat,gonzolino/heat,noironetworks/heat,srznew/heat,rh-s/heat,JioCloud/heat,cwolferh/heat-scratch,takeshineshiro/heat,steveb/heat,jasondunsmore/heat,citrix-openstack-build/heat,dims/heat,openstack/heat,rickerc/heat_audit,pratikmallya/heat,cwolferh/heat-scratch,rdo-management/heat,Triv90/Heat,dims/heat,jasondunsmore/heat,NeCTAR-RC/heat,openstack/heat,maestro-hybrid-cloud/heat,citrix-openstack-build/heat,redhat-openstack/heat,miguelgrinberg/heat,cryptickp/heat,rh-s/heat,rdo-management/heat,srznew/heat,pshchelo/heat,ntt-sic/heat,dragorosson/heat,pratikmallya/heat