erp5_crm: Add TALES and disable Default to now

With TALES in default, we prevent acquisition from the start date. When default is None, the field will try to display now on the stop date.

The goal is, if stop_date is None, we don't display anything in this field.

bt5/erp5_crm/SkinTemplateItem/portal_skins/erp5_crm/Event_view/my_stop_date.xml

@@ -10,6 +10,8 @@
             <key> <string>delegated_list</string> </key>
             <value>
               <list>
+                <string>default</string>
+                <string>default_now</string>
                 <string>enabled</string>
                 <string>title</string>
               </list>
@@ -54,11 +56,21 @@
             <value>
               <dictionary>
                 <item>
-                    <key> <string>enabled</string> </key>
+                    <key> <string>default</string> </key>
                     <value>
                       <persistent> <string encoding="base64">AAAAAAAAAAI=</string> </persistent>
                     </value>
                 </item>
+                <item>
+                    <key> <string>default_now</string> </key>
+                    <value> <string></string> </value>
+                </item>
+                <item>
+                    <key> <string>enabled</string> </key>
+                    <value>
+                      <persistent> <string encoding="base64">AAAAAAAAAAM=</string> </persistent>
+                    </value>
+                </item>
                 <item>
                     <key> <string>field_id</string> </key>
                     <value> <string></string> </value>
@@ -82,6 +94,16 @@
             <key> <string>values</string> </key>
             <value>
               <dictionary>
+                <item>
+                    <key> <string>default</string> </key>
+                    <value>
+                      <none/>
+                    </value>
+                </item>
+                <item>
+                    <key> <string>default_now</string> </key>
+                    <value> <int>0</int> </value>
+                </item>
                 <item>
                     <key> <string>enabled</string> </key>
                     <value> <int>1</int> </value>
@@ -109,6 +131,19 @@
     </pickle>
   </record>
   <record id="2" aka="AAAAAAAAAAI=">
+    <pickle>
+      <global name="TALESMethod" module="Products.Formulator.TALESField"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>_text</string> </key>
+            <value> <string>python: context.hasStopDate() and context.getStopDate() or None</string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+  <record id="3" aka="AAAAAAAAAAM=">
     <pickle>
       <global name="TALESMethod" module="Products.Formulator.TALESField"/>
     </pickle>