Additional optional Environment data to heat template selection

Change-Id: I4e0d32e7e032d5c0ec93595c14134e780fa21d66
Implements: blueprint heat-environment-file
Adding resource link to resource detail page in Heat view

Change-Id: I155d0eec5d46be5df1c7d9ea090de39e56fe6c7d
Implements: blueprint heat-stack-detail-resources-column