Add support for heat resource templates
Add support for heat resource templates

These are resources that are defined as a template and
can be customised by a deployer.

Change-Id: Ia739a36d627b7cfec26641b89513355e65cd1d1f

atulpatil301/devstack,herrsechs/devstack,NaokiMiyata/devstack,openstack-dev/devstack,dtroyer/devstack,TwinkleChawla/devstack,pacinete/devstack,bigswitch/devstack,sc68cal/devstack,nawawi/openstack,Millnert/contrail-devstack,jamielennox/devstack,sequenceiq/devstack,mmasaki/devstack,olivierlemasle/devstack,nawawi/openstack,ozamiatin/devstack,parul24/devstack,samgoon/devstack,bq-xiao/devstack,herrsechs/devstack,wenhuizhang/devstack,pombredanne/devstack,promptworks/devstack,j4/devstack,bigswitch/devstack,affo/devstack,ozamiatin/devstack,CloudServer/devstack,promptworks/devstack,tianweizhang/devstack,costingalan/devstack,prithivm/branch01,samgoon/devstack,openstack-dev/devstack,eshnil2000/devstack,upadhyay-prashant/devstack,flavio-fernandes/devstack,j4/devstack,innodee/openstackk,richliu/devstack,srics/devstack,dirkmueller/devstack,sc68cal/devstack,costingalan/devstack,rushiagr/devstack,BSJAIN92/OpenStack,neerja28/Devstack_GlusterFS,mc2014/devstack,pacinete/devstack,eharney/devstack,deepakselvaraj/devstack,noironetworks/devstack,mssumanth/devstack,NaokiMiyata/devstack,thomasem/devstack,affo/devstack,Mahito/devstack,group-policy/devstack,mc2014/devstack,bljgaurav/openstack-test,varunarya10/devstack,nuxeh/devstack,olivierlemasle/devstack,dirkmueller/devstack,vishnugonela/devstack,yamt/devstack,pczerkas/devstack,LoHChina/devstack,dtroyer/devstack,vsham20/devstack,avvocatodemarchis/devstack,Mahito/devstack,group-policy/devstack,BSJAIN92/OpenStack,virtualopensystems/devstack,JioCloud/devstack,Yuriy-Leonov/devstack,atulpatil301/devstack,bq-xiao/devstack,varunarya10/devstack,HPCHub/devstack,bswartz/devstack,prithivm/branch01,andrewrothstein/devstack,kplus/devstack-moonshot,williamthegrey/devstack,Juniper/devstack,thomasem/devstack,TwinkleChawla/devstack,tianweizhang/devstack,pczerkas/devstack,liuquansheng47/devstack,upadhyay-prashant/devstack,eharney/devstack,vishnugonela/devstack,rushiagr/devstack,parul24/devstack,noironetworks/devstack,kplus/devstack-moonshot,wenhuizhang/devstack,nuxeh/devstack,avvocatodemarchis/devstack,bswartz/devstack,pombredanne/devstack,flavio-fernandes/devstack,CloudServer/devstack,mmasaki/devstack,vsham20/devstack,neerja28/Devstack_GlusterFS,LoHChina/devstack,richliu/devstack,HPCHub/devstack,sequenceiq/devstack,bljgaurav/openstack-test,andrewrothstein/devstack,liuquansheng47/devstack,mssumanth/devstack