Add flavor extra spec key templates

Add a variety of common keys in a dropdown to help users
add flavor extra keys.

Change-Id: I1738c65887cc165255a027f82474a33c5efe3218
Implements: blueprint flavor-extra-specs-templates

openstack_dashboard/test/settings.py

@@ -12,6 +12,8 @@
 
 import os
 
+from django.utils.translation import ugettext_lazy as _
+
 from horizon.test.settings import *  # noqa
 from horizon.utils import secret_key
 
@@ -201,3 +203,14 @@ POLICY_FILES = {
     'identity': 'keystone_policy.json',
     'compute': 'nova_policy.json'
 }
+
+FLAVOR_EXTRA_KEYS = {
+    'flavor_keys': [
+        ('quota:read_bytes_sec', _('Quota: Read bytes')),
+        ('quota:write_bytes_sec', _('Quota: Write bytes')),
+        ('quota:cpu_quota', _('Quota: CPU')),
+        ('quota:cpu_period', _('Quota: CPU period')),
+        ('quota:inbound_average', _('Quota: Inbound average')),
+        ('quota:outbound_average', _('Quota: Outbound average')),
+    ]
+}