Add EPANET2 input format

api/s2_junctions.py

@@ -120,6 +120,10 @@ def delete_junction(name: str, cs: ChangeSet) -> ChangeSet:
     return execute_command(name, delete_junction_cmd(name, cs))
 
 
+#--------------------------------------------------------------
+# [EPANET2]
+#   id  elev.  (demand)  (demand pattern)
+#--------------------------------------------------------------
 class InpJunction:
     def __init__(self, line: str) -> None:
         tokens = line.split()