Added 'title' diagram property

uml/class/package_model_class.yml

@@ -1,4 +1,5 @@
 type: class
+title: Package diagram model
 include_relations_also_as_members: false
 generate_method_arguments: none
 glob:
@@ -12,7 +13,4 @@ using_namespace:
   - clanguml::package_diagram::model
 exclude:
   relationships:
-    - dependency
-plantuml:
-  before:
-    - 'title clang-uml package diagram model'
+    - dependency