Consider switching to wesnoth.effects for some properties

[Discontinuum]

Some properties happen to have a built-in support in wesnoth.effects from 1.14, so maybe we can switch to using built-in ones (although the code in stas.lua probably have to stay for supporting legacy saves).

Among them are vision (apply_to=vision), max_attacks (in docs max_attacks with increase= key while LotI uses add), alignment (LotI items use

[effect]
apply_to=alignment
alignment=chaotic
[/effect]

while Wesnoth docs define the built-in alignment effect as

[effect]
apply_to=alignment
set=chaotic
[/effect]

[Dugy]

Yes, that would make sense.