Updating to add pageSize (#470)

Author: petriro

data/v1.yaml

@@ -641,6 +641,8 @@ components:
           default: true
         pageKey:
           $ref: '../nft/nfts.yaml#/components/schemas/pageKey'
+        pageSize:
+          $ref: '../nft/nfts.yaml#/components/schemas/pageSize'
       required:
         - addresses