Rethink selection lists as intmaps

src/Dodge/Data/Combine.hs

@@ -0,0 +1,10 @@
+{-# LANGUAGE TemplateHaskell #-}
+module Dodge.Data.Combine where
+import Control.Lens
+import Dodge.Data.Item
+data CombinableItem = CombinableItem
+    { _ciInvIDs :: [Int]
+    , _ciItem :: Item
+    , _ciInfo :: [String]
+    }
+makeLenses ''CombinableItem