Expose a get_spice_console RPC API method

To mirror the existing get_vnc_console RPC API method, expose a
new get_spice_console RPC API method. The only console type
supported currently is 'spice-html5' which is equivalent to
'novnc'

Blueprint: libvirt-spice
Change-Id: Iab9d3dfc3564a122a8cd2b53d34fdcc725bfa29b
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

nova/tests/fakelibvirt.py

@@ -414,6 +414,7 @@ class Domain(object):
     <input type='tablet' bus='usb'/>
     <input type='mouse' bus='ps2'/>
     <graphics type='vnc' port='-1' autoport='yes'/>
+    <graphics type='spice' port='-1' autoport='yes'/>
     <video>
       <model type='cirrus' vram='9216' heads='1'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x02'

nova/tests/test_fakelibvirt.py

@@ -53,6 +53,7 @@ def get_vm_xml(name="testname", uuid=None, source_type='file',
     </interface>
     <input type='mouse' bus='ps2'/>
     <graphics type='vnc' port='5901' autoport='yes' keymap='en-us'/>
+    <graphics type='spice' port='5901' autoport='yes' keymap='en-us'/>
   </devices>
 </domain>''' % {'name': name,
                 'uuid_tag': uuid_tag,