Time loot generation before export to warn users about server-crashing loot drops

[thommcgrath]

This was discussed in Discord: https://discord.com/channels/323110888452390913/323110888452390913/903060634441236541

Loot with absurdly large quantities will crash a server since Ark's loot generation algorithm is so detailed. This has an effect on Beacon's simulator as well. If Beacon were to simulate drops before deploy, it could warn users about the problem. But performance of the computer is a factor. A faster computer will get lower times than a slower one, potentially triggering a false positive or false negative.

In theory, such an option won't be necessary thanks to the upcoming single-item mode support. Since Beacon will apply this automatically whenever an item set entry has just one item, it'll become a non-issue. So maybe this isn't worth implementing.