Adding bootable column to volume list view

displays whether a volume is bootable based on cinder's api response for
/volumes

Change-Id: I8f6cc6e02be8226914f65717dcb2e0367553e51f

cinderclient/v1/shell.py

@@ -148,7 +148,7 @@ def do_list(cs, args):
         servers = [s.get('server_id') for s in vol.attachments]
         setattr(vol, 'attached_to', ','.join(map(str, servers)))
     utils.print_list(volumes, ['ID', 'Status', 'Display Name',
-                     'Size', 'Volume Type', 'Attached to'])
+                     'Size', 'Volume Type', 'Bootable', 'Attached to'])
 
 
 @utils.arg('volume', metavar='<volume>', help='ID of the volume.')

tests/v1/fakes.py

@@ -27,6 +27,7 @@ def _stub_volume(**kwargs):
         'display_name': None,
         'display_description': None,
         "attachments": [],
+        "bootable": "false",
         "availability_zone": "cinder",
         "created_at": "2012-08-27T00:00:00.000000",
         "display_description": None,