heat engine : Set stack parameters AWS::StackId on stack create/store

We need to set the ARN provided via the AWS::StackId pseudo parameter
when the stack is stored, and also whenever a parser.Stack object is
created

ref bug 1131666

Change-Id: Ic8dc5ab2b25c85c51f2f685fe69bb2447a1e3615
Merge "heat engine : Set stack parameters AWS::StackId on stack create/store"