slapos_erp5: provide read access on software installation module to customer

master/bt5/slapos_erp5/LocalRolesTemplateItem/software_installation_module.xml

 <local_roles_item>
  <local_roles>
+  <role id='F-CUSTOMER'>
+   <item>Auditor</item>
+  </role>
   <role id='F-PRODUCTION*'>
    <item>Auditor</item>
    <item>Author</item>

master/bt5/slapos_erp5/PortalTypeRolesTemplateItem/Software%20Installation%20Module.xml

@@ -5,10 +5,13 @@
    <multi_property id='category'>role/computer</multi_property>
    <multi_property id='base_category'>role</multi_property>
   </role>
+  <role id='Auditor'>
+   <property id='title'>Member</property>
+   <multi_property id='category'>function/customer</multi_property>
+   <multi_property id='base_category'>function</multi_property>
+  </role>
   <role id='Auditor; Author'>
-   <property id='title'>Project Production</property>
-   <property id='description'>XXX TODO
-add local roles group</property>
+   <property id='title'>Production</property>
    <multi_property id='category'>function/production*</multi_property>
    <multi_property id='base_category'>function</multi_property>
   </role>