accounting: display Payment Requests on profile tab

The fields are displayed only if some portal types are configured as
member of payment_request group. This means that currently it's not
displayed by default.

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/PurchaseInvoiceTransaction_viewProfile.xml

@@ -80,6 +80,7 @@
                         <string>my_destination_project_title</string>
                         <string>my_destination_reference</string>
                         <string>my_destination_carrier_title</string>
+                        <string>my_destination_payment_request_title</string>
                       </list>
                     </value>
                 </item>
@@ -95,6 +96,7 @@
                         <string>my_source_project_title</string>
                         <string>my_source_reference</string>
                         <string>my_source_carrier_title</string>
+                        <string>my_source_payment_request_title</string>
                       </list>
                     </value>
                 </item>

bt5/erp5_accounting/SkinTemplateItem/portal_skins/erp5_accounting/SaleInvoiceTransaction_viewProfile.xml

@@ -80,6 +80,7 @@
                         <string>my_source_project_title</string>
                         <string>my_source_reference</string>
                         <string>my_source_carrier_title</string>
+                        <string>my_source_payment_request_title</string>
                       </list>
                     </value>
                 </item>
@@ -95,6 +96,7 @@
                         <string>my_destination_project_title</string>
                         <string>my_destination_reference</string>
                         <string>my_destination_carrier_title</string>
+                        <string>my_destination_payment_request_title</string>
                       </list>
                     </value>
                 </item>