Add 'revision' field to part

- e.g. different versions of a product
- Can keep old versions in database and mark as inactive

InvenTree/part/templates/part/detail.html

@@ -13,7 +13,7 @@
     <table class='table table-striped'>
         <tr>
             <td><b>Part name</b></td>
-            <td>{{ part.full_name }}</td>
+            <td>{{ part.name }}</td>
         </tr>
         {% if part.IPN %}
         <tr>
@@ -21,6 +21,12 @@
             <td>{{ part.IPN }}</td>
         </tr>
         {% endif %}
+        {% if part.revision %}
+        <tr>
+            <td><b>Revision</b></td>
+            <td>{{ part.revision }}</td>
+        </tr>
+        {% endif %}
         <tr>
             <td><b>Description</b></td>
             <td>{{ part.description }}</td>