Add heat to modules.list

A previous commit added support for Heat to
puppet_openstack_builder.  However, the change only works when
using install_type=git because the heat wasn't added to
modules.list (which is read when determining what packages need
to be installed when using install_type=deb).  This commit adds
heat to the modules.list file so that the puppet-heat package
gets installed when using install_type=deb.

Change-Id: I5cec210f6da9d4539230595d57b281f0acf56028
Add modules to the list used by Cisco install

Add remaining puppet modules required for the Cisco install to
the list parsed by the cisco supplemental install script.

Change-Id: I285f65b6887d3cdcd6b5316bd5167a1e9362e088
Partial-Bug: 1255224
Add system module path to install script

Include both /etc/puppet and /usr/share/puppet in default module
search path for initial install. Required to use system puppet
modules.

Change-Id: I907d6da0a210d4a904bdae8a20238d7c99993f6b
Partial-Bug: #1255224
Merge "Add system module path to install script"
Merge branch 'master' of https://github.com/stackforge/puppet_openstack_builder into coi-development