adding part colour

app/templates/admin/_part_colours_table.html

@@ -0,0 +1,18 @@
+<div id="part-colour-list" class="card">
+  <table class="table">
+    <thead>
+      <tr>
+        <th>ID</th>
+        <th>Name</th>
+        <th></th>
+      </tr>
+    </thead>
+    <tbody>
+      {% for pc in part_colours %}
+        {% include "admin/_part_colour_row.html" %}
+      {% else %}
+        <tr><td colspan="3" class="muted">No part colours recorded.</td></tr>
+      {% endfor %}
+    </tbody>
+  </table>
+</div>