Added ability to access a swift from vanilla-1 hive

* Generates a cluster-scoped proxy-user and keystone TRUST
* Pass a proxy-user auth and trust id to hive-server using hive-site.xml

Partially implements: blueprint edp-hive-vanilla-swift

Change-Id: I65592421b29428d3e726aaf0aaa4977378849ef0
Merge "Added ability to access a swift from vanilla-1 hive"