add init file for camunda

diagrams/camunda/__init__.py

@@ -0,0 +1,12 @@
+"""
+Camunda provides a set of general camunda services.
+"""
+
+from diagrams import Node
+
+
+class _Camunda(Node):
+    _provider = 'camunda'
+    _icon_dir = 'resources/camunda'
+
+    fontcolor = '#ffffff'