Add identifiers to item_fling_effects.csv

pokedex/data/csv/item_fling_effects.csv

@@ -1,8 +1,8 @@
-id
-1
-2
-3
-4
-5
-6
-7
+id,identifier
+1,badly-poison
+2,burn
+3,berry-effect
+4,herb-effect
+5,paralyze
+6,poison
+7,flinch

pokedex/db/tables.py

@@ -1058,6 +1058,9 @@ class ItemFlingEffect(TableBase):
     __singlename__ = 'item_fling_effect'
     id = Column(Integer, primary_key=True, nullable=False,
         doc=u"A numeric ID")
+    identifier = Column(Unicode(79), nullable=False,
+        doc=u"An identifier of this fling effect",
+        info=dict(format='identifier'))
 
 create_translation_table('item_fling_effect_prose', ItemFlingEffect, 'prose',
     effect = Column(UnicodeText, nullable=False,