add default_turbine_data to pip install package_data (#133)

Author: maurerle

Diff for: setup.py

@@ -17,7 +17,8 @@ def read(fname):
     packages=["windpowerlib"],
     package_data={
         "windpowerlib": [
-            os.path.join("data", "*.csv"),
+            os.path.join("data", "**.csv"),
+            os.path.join("data", "default_turbine_data", "*.csv"),
             os.path.join("oedb", "*.csv"),
         ]
     },