remove kind, spil class in subclasses

src/paveit/datamodels/norm_documents.py

@@ -2,18 +2,11 @@ from mongoengine import *
 from enum import Enum
 
 
-class NormKindEnum(Enum):
-    Aggregate = 'Aggregate'
-    Bitumen = 'Bitumen'
-    Asphalt = 'Asphalt'
-    
 class NormPublisherEnum(Enum):
     FGSV = 'FGSV'
 
 class NormDocument(Document):
     
-    kind = EnumField(NormKindEnum, required=True)
-    
     name = StringField(required=True)    
     name_short = StringField(required=True)    
     
@@ -32,4 +25,6 @@ class NormDocument(Document):
         'collection': 'norm_documents',
         "db_alias": 'dblabtests',
     }
-    
+    
+class Aggregate(NormDocument):
+    pass