Use prettyxml output

minidom's toprettyxml doesn't render well so using etree instead

Change-Id: Iad05d55cfb071b11cb6f6b30aa9f23f33fd8039c
baremetal: Move tests under tests/virt/baremetal

Change-Id: Ie066d5d4f53bc33338e160971af99ef637de7ad1
libvirt: Moving tests under tests/virt/libvirt

Change-Id: I8adfbb48fa0b05f999618b9f17cbca2b3ea04c93
Merge "Use prettyxml output"
Merge "libvirt: Moving tests under tests/virt/libvirt"
Merge "baremetal: Move tests under tests/virt/baremetal"