BUGFIX Copy instackenv.json file to the undercloud host
BUGFIX Copy instackenv.json file to the undercloud host

- During the introspection play, ir looked for the file on the
  undercloud host instead of localhost.
- The 'copy instackenv if provided by the user' and
  'verify that instackenv json file exists' tasks were modified
  in order to match the deploys from the templates folder and by
  using the '--instackenv-file' flag.

Change-Id: I3867810902d6f3d7b5b73fb4ffff8c8a174d99da

redhat-openstack/infrared,redhat-openstack/infrared,okolisny/InfraRed,okolisny/InfraRed,redhat-openstack/infrared,okolisny/InfraRed