Fixed ExtendedSRAM not saving

Fix enemy drops and pots with Fairies/Chickens/Big Magic
Fixed Big Magic refill when in chests/standing items
Changed shop code to respect ShopEnableCount flag

inventory.asm

@@ -181,6 +181,7 @@ ShopCheck:
 ; TODO: If we write all shops, we can use the ShopPurchase flag instead of this
         LDA.b IndoorsFlag : BEQ .count
         LDA.w ItemReceiptMethod : CMP.b #$01 : BEQ .count
+        LDA.l ShopEnableCount : BNE .count
         LDA.w InventoryTable_properties,Y : BIT.b #$02 : BNE .count
                 REP #$20
                 LDA.b RoomIndex