accounting: restrict Grouping action to user who can Add to accounting module

Users with only view permissions in accounting should not be offered to use
the grouping reference fast inputs, because grouping transactions is a kind
of modification.

bt5/erp5_accounting/ActionTemplateItem/portal_types/Accounting%20Transaction%20Module/grouping_reference_fast_input.xml

@@ -48,7 +48,7 @@
             <key> <string>permissions</string> </key>
             <value>
               <tuple>
-                <string>View</string>
+                <string>Add portal content</string>
               </tuple>
             </value>
         </item>

bt5/erp5_accounting/ActionTemplateItem/portal_types/Organisation/grouping_reference_fast_input.xml

@@ -94,7 +94,7 @@ string:${portal_url}/accounting_module/AccountingTransactionModule_viewGroupingF
       <dictionary>
         <item>
             <key> <string>text</string> </key>
-            <value> <string>python:portal.Base_checkPermission(\'accounting_module\', \'View\')</string> </value>
+            <value> <string>python:portal.Base_checkPermission(\'accounting_module\', \'Add portal content\')</string> </value>
         </item>
       </dictionary>
     </pickle>

bt5/erp5_accounting/ActionTemplateItem/portal_types/Person/grouping_reference_fast_input.xml

@@ -94,7 +94,7 @@ string:${portal_url}/accounting_module/AccountingTransactionModule_viewGroupingF
       <dictionary>
         <item>
             <key> <string>text</string> </key>
-            <value> <string>python:portal.Base_checkPermission(\'accounting_module\', \'View\')</string> </value>
+            <value> <string>python:portal.Base_checkPermission(\'accounting_module\', \'Add portal content\')</string> </value>
         </item>
       </dictionary>
     </pickle>