Addresses issues with PapyrusActorValueInfo::GetPerk.* implementation.

[sky-void0]

Hello Ian,

First of all, my earnest apologies for the misunderstanding before. I made unrealistic assumptions based on PRs history. Please, take as long you need to review these and any future patches. Whether it takes a month or a year, I'm here if you've any questions/concerns/comments.

Cheers.

Rationale

In its current implementation, PapyrusActorValueInfo::GetPerkxxx functions can generate a stack overflow when traversing a malformed perk tree with cyclically linked nodes. e.g https://www.nexusmods.com/skyrimspecialedition/mods/20605. These patches address the issue by establishing a max recursion depth limit. Additionally, the added perks are checked to avoid repetitions in the resulting perk array, which is something that can happen even with conventional perk trees.

The last patch doesn't fix anything, it's just an "improvement" I made while I was debugging that section. Feel free to Ignore or merge it, if you feel so inclined.

[ianpatt]

Just as a heads up, Fallout 4 is about to be set on fire by the new update and I am going to have a ton of script extender stuff to do at very high priority with basically no free time, so this is going to take a bit to get to.

[sky-void0]

Thanks for the update. I completely understand, please don't feel any pressure to get to this. It's honestly perplexing how you manage, maintain and support so many versions of the extender for so many games, and for this long. And how you still release lightning fast updates whenever Bethesda decides to unleash another round of mayhem.

Big kudos to you sir. The entire community owes you and the rest of team an enormous debt of gratitude 👍