Added callee_filter for including/excluding messages based on receiver type (#152)

tests/test_config_data/filters.yml

@@ -87,4 +87,10 @@ diagrams:
     type: class
     include:
       dependants:
-        - r: 'A|B'
+        - r: 'A|B'
+  callee_type_include_test:
+    type: sequence
+    include:
+      callee_types:
+        - function
+        - function_template