Added enrolment success for wifi user enrollment

app/templates/enroll-success.html

@@ -0,0 +1,9 @@
+{% extends "base.html" %}
+{% block content %}
+<h1>You're all set!</h1>
+<p>Your guest WiFi account has been created.</p>
+{% if username %}
+<p>Connect to the guest WiFi and log in as <strong>{{ username }}</strong>.</p>
+{% endif %}
+<p style="color: #999; font-size: 0.85rem;">You can close this window.</p>
+{% endblock %}