erp5_invoicing: add type_class to some portal types

bt5/erp5_invoicing/PortalTypeTemplateItem/portal_types/Invoice%20Cell.xml

@@ -55,6 +55,10 @@
             <key> <string>title</string> </key>
             <value> <string></string> </value>
         </item>
+        <item>
+            <key> <string>type_class</string> </key>
+            <value> <string>InvoiceCell</string> </value>
+        </item>
       </dictionary>
     </pickle>
   </record>

bt5/erp5_invoicing/PortalTypeTemplateItem/portal_types/Invoice%20Simulation%20Rule.xml

@@ -54,6 +54,10 @@
             <key> <string>title</string> </key>
             <value> <string></string> </value>
         </item>
+        <item>
+            <key> <string>type_class</string> </key>
+            <value> <string>InvoiceSimulationRule</string> </value>
+        </item>
       </dictionary>
     </pickle>
   </record>

bt5/erp5_invoicing/PortalTypeTemplateItem/portal_types/Invoice%20Transaction%20Simulation%20Rule.xml

@@ -62,6 +62,10 @@
             <key> <string>title</string> </key>
             <value> <string></string> </value>
         </item>
+        <item>
+            <key> <string>type_class</string> </key>
+            <value> <string>InvoiceTransactionSimulationRule</string> </value>
+        </item>
       </dictionary>
     </pickle>
   </record>

bt5/erp5_invoicing/PortalTypeTemplateItem/portal_types/Trade%20Model%20Simulation%20Rule.xml

@@ -79,6 +79,10 @@
             <key> <string>title</string> </key>
             <value> <string></string> </value>
         </item>
+        <item>
+            <key> <string>type_class</string> </key>
+            <value> <string>TradeModelSimulationRule</string> </value>
+        </item>
       </dictionary>
     </pickle>
   </record>