root node for yaml cfood definition file added

tests/scifolder_cfood.yml

 
-DataAnalysis:
-
-  children:
-    project_dir:
-      re: (?P<date>.*?)_(?P<identifier>.*)
-      handlers:
-      - type: identifiable
-        name: idf_project
-
-      children:
-        single:
-          re: (?P<date>.*?)_(?P<identifier>.*)
-
-          children:
-
-            README:
-              type: file
-              case: insensitive
-              re: README\.md
-
-              children:
-              - description:
-                type: TEXT
-              - responsible:
+root:
+  DataAnalysis:
+   
+    children:
+      project_dir:
+        re: (?P<date>.*?)_(?P<identifier>.*)
+        handlers:
+        - type: identifiable
+          name: idf_project
+   
+        children:
+          single:
+            re: (?P<date>.*?)_(?P<identifier>.*)
+   
+            children:
+   
+              README:
+                type: file
+                case: insensitive
+                re: README\.md
+   
                 children:
+                - description:
                   type: TEXT
-                  re: (?P<first_name>.+) (?P<last_name>.+)
-                  handlers:
-                    type: identifiable
-                    name: idf_person
+                - responsible:
+                  children:
+                    type: TEXT
+                    re: (?P<first_name>.+) (?P<last_name>.+)
+                    handlers:
+                      type: identifiable
+                      name: idf_person