deprecate create_empty_network

pandapower/__init__.py

@@ -3,6 +3,8 @@
 
 from pandapower._version import __version__, __format_version__
 
+from pandapower.network import ADict, pandapowerNet
+
 from pandapower.auxiliary import *  # TODO: some functions shouldn't be available with import pandapower
 from pandapower.std_types import *
 from pandapower.create import *