Add nodes groups features

example/platform.yaml

@@ -28,6 +28,10 @@ nodes:
     # 0-@ receiver.py     is equivalent to     0-4 receiver.py
     implementations:
         - all sender.py
+    # Allow you to assign a group to each node (visible in ESDS log reports)
+    # If not specified, group is "def" for default
+    groups:
+        - 0-2 A
     # Node implementation arguments
     # arguments keys are ranges of nodes, and values are passed to the specified nodes
     arguments: