slapos_subscription_request: add missing source_project base category on Subscription Request

XXX Subscription Request must inherit this from ticket instead of defining all of this manually

master/bt5/slapos_subscription_request/PortalTypeBaseCategoryTemplateItem/base_category_list.xml

@@ -14,6 +14,7 @@
   <item>causality</item>
   <item>destination_section</item>
   <item>source</item>
+  <item>source_project</item>
   <item>source_section</item>
   <item>specialise</item>
  </portal_type>

master/bt5/slapos_subscription_request/bt/template_portal_type_base_category_list

@@ -9,5 +9,6 @@ Subscription Request | aggregate
 Subscription Request | causality
 Subscription Request | destination_section
 Subscription Request | source
+Subscription Request | source_project
 Subscription Request | source_section
 Subscription Request | specialise
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