Update Doxygen docs for sequence_diagram namespace

uml/class/sequence_model_class.yml

@@ -1,6 +1,7 @@
 type: class
-include_relations_also_as_members: false
+include_relations_also_as_members: true
 generate_method_arguments: none
+generate_packages: true
 glob:
   - src/common/model/*.cc
   - src/sequence_diagram/model/*.cc
@@ -8,11 +9,21 @@ include:
   namespaces:
     - clanguml::common::model
     - clanguml::sequence_diagram::model
+  context:
+    - clanguml::sequence_diagram::model::diagram
+    - clanguml::sequence_diagram::model::message
+    - clanguml::sequence_diagram::model::activity
+  subclasses:
+    - clanguml::sequence_diagram::model::participant
 exclude:
   relationships:
     - dependency
+  method_types:
+    - constructor
+    - destructor
+    - operator
 using_namespace:
-  - clanguml::sequence_diagram::model
+  - clanguml
 plantuml:
   before:
     - 'title clang-uml sequence diagram model'