Fixed plantuml config option inheritance

tests/test_config_data/inherited.yml

@@ -10,7 +10,11 @@ include:
 glob:
   - src/**/*.cc
   - src/**/*.h
-
+plantuml:
+  before:
+    - This is a common header
+  after:
+    - This is a common footnote
 diagrams:
   class_default:
     type: class
@@ -21,4 +25,8 @@ diagrams:
     include_relations_also_as_members: true
     glob:
       - src/main.cc
-
+    plantuml:
+      before:
+        - title This is diagram A
+      after:
+        - "note left of A: This is a note"

tests/test_config_data/simple.yml

@@ -16,4 +16,21 @@ diagrams:
     include:
       namespaces:
         - clanguml
-        - ABCD
+        - ABCD
+      access:
+        - public
+        - protected
+        - private
+      relationships:
+        - inheritance
+        - composition
+        - aggregation
+        - containment
+        - ownership
+        - association
+        - instantiation
+        - friendship
+        - dependency
+    exclude:
+      relationships:
+        - none