Add support for TOSCA policies for Heat Translator

Support for TOSCA policies in particular basic "Placement" policies depending upon spec work for version 1 of specs is going to be added in the tosca-parser, https://blueprints.launchpad.net/tosca-parser/+spec/tosca-policies This blueprint in heat-translator is to find a mapping in heat for TOSCA Policies and trans...

Add support for TOSCA group and group types for Heat Translator

TOSCA Group Types represent a logical grouping of TOSCA nodes that have an implied relationship and need to be orchestrated or managed together to achieve some result. Some use cases being developed by the TOSCA TC use groups to apply TOSCA policies for software placement and scaling while other use cases show grou...