Add image create template

Image creation action was lacking a template to render the form. This
patch adds said template.

Also redirects to /scopes when the request was processed by the ogserver
successfully.

ogcp/templates/actions/image_create.html

@@ -0,0 +1,11 @@
+{% extends 'base.html' %}
+{% import "bootstrap/wtf.html" as wtf %}
+
+{% block content %}
+
+{{ wtf.quick_form(form,
+                  action=url_for('action_image_create'),
+                  method='post',
+                  button_map={'create': 'primary'}) }}
+
+{% endblock %}

ogcp/views.py

@@ -443,7 +443,7 @@ def action_image_create():
                    "center_id": r.json()["center"]}
         r = g.server.post('/image/create', payload)
         if r.status_code == requests.codes.ok:
-            return make_response("200 OK", 200)
+            return redirect(url_for("scopes"))
         return make_response("400 Bad Request", 400)
     else:
         ips = parse_ips(request.args.to_dict())