Moved EpcClean class to correct place

epc_data/app.py

@@ -5,6 +5,7 @@ from epc_data.Property import Property
 from epc_data.config import EPC_AUTH_TOKEN
 from epc_api.client import EpcClient
 from epc_data.downloader import pagenated_epc_download
+from epc_data.EpcClean import EpcClean
 
 
 def handler():
@@ -33,7 +34,4 @@ def handler():
             )
         )
 
-    # TODO: Fill this
-
-    field = "roof-description"
-
+    cleaner = EpcClean(data)