Add ability to filter price value in ascending and descending order in the Lot Value Calculator

Description:
Add ability to filter price value in ascending and descending order in the Lot Value Calculator.

Why it would be useful:
Games need to be tested and verified when a lot is acquired. Personally, I tend to verify games that are worth over 100$ more carefully, but not everyone I work with know the value of games.

Being able to give them a list with prices in descending order and tell them to check more thoroughly games that are worth over 100$ would be very useful.