do not allow view for anonymous in portal callables to protect customer code

bt5/erp5_callables/ToolTemplateItem/portal_callables.xml

@@ -6,6 +6,19 @@
     </pickle>
     <pickle>
       <dictionary>
+        <item>
+            <key> <string>_View_Permission</string> </key>
+            <value>
+              <tuple>
+                <string>Assignee</string>
+                <string>Assignor</string>
+                <string>Associate</string>
+                <string>Auditor</string>
+                <string>Authenticated</string>
+                <string>Manager</string>
+              </tuple>
+            </value>
+        </item>
         <item>
             <key> <string>_count</string> </key>
             <value>