update NPCs involved in AF hands quest

[wrenffxi]

I affirm:

• [x] that I agree to Topaz Next's Limited Contributor License Agreement, as written on this date
• [x] that I have read the Contributing Guide and the Code of Conduct
• [x] that I've tested my code since the last commit in the PR, and will test after any later commits

Temporary:

• [x] that I understand there are large refactoring efforts going on right now, that these efforts touch every single Lua script and binding, and that my pull request might get put on hold to ensure there are not any conflicts with the refactoring work

Guslam:

• Table prerequisite quest info.
• Remove if/elseif tower.
• Don't allow BorghertzHandsFirstTime variable to be set again after it's been zeroed-out.

Yin Pocanakhu:

• Add onEventUpdate to handle whether the player can pay or not.
• Stop chaining event 221.

[zach2good]

Much better!