Allow kwargs

This is helpful for the feedinlib in case same WindPowerPlant is called
with different models

Author: birgits

windpowerlib/wind_farm.py

@@ -83,7 +83,7 @@ class WindFarm(object):
 
     """
     def __init__(self, name, wind_turbine_fleet, coordinates=None,
-                 efficiency=None):
+                 efficiency=None, **kwargs):
 
         self.name = name
         self.wind_turbine_fleet = wind_turbine_fleet

windpowerlib/wind_turbine.py

@@ -107,7 +107,7 @@ class WindTurbine(object):
     def __init__(self, name, hub_height, rotor_diameter=None,
                  power_coefficient_curve=None, power_curve=None,
                  nominal_power=None, fetch_curve=None, coordinates=None,
-                 data_source='oedb'):
+                 data_source='oedb', **kwargs):
 
         self.name = name
         self.hub_height = hub_height

windpowerlib/wind_turbine_cluster.py

@@ -48,7 +48,7 @@ class WindTurbineCluster(object):
         The calculated power output of the wind turbine cluster.
 
     """
-    def __init__(self, name, wind_farms, coordinates=None):
+    def __init__(self, name, wind_farms, coordinates=None, **kwargs):
 
         self.name = name
         self.wind_farms = wind_farms