Add quota.type field when reporting share usage

Adding field "type" will allow correct formatting of reported
values in "Overview" panel in Horizon. It will also make the fields
consistent with what's available in standard Horizon quotas.

Change-Id: Iecfdaddaaf457aea776a5f8f13eaeb02bc741222
Closes-bug: #1717203

manila_ui/dashboards/project/shares/__init__.py

@@ -380,6 +380,7 @@ def get_context_data(self, **kwargs):
     for t in types:
         if t[0] in self.usage.limits and t[1] in self.usage.limits:
             context['charts'].append({
+                'type': t[0],
                 'name': t[2],
                 'used': self.usage.limits[t[0]],
                 'max': self.usage.limits[t[1]],