LTTP: sort of use new options system

[Berserker66]

What is this fixing or adding?

Makes LttP use the new options system in a way it should continue working when the old one is gone.

How was this tested?

I made deprecatedict raise on error and got a generation

[qwint]

pure code review, did not run gens/tests/etc.

options dataclass looks good,
did some testing around the old options re-establisher format in a python shell and checked docs and it all looks functional

of note though, this will override the deprecateDicts that core writes, so opening up potential issues of crashing weird if other worlds share that option name and use the old api, not being able to track well what lttp options are being got through multiworld.option_name still, etc.
but I believe that was known when this bandaid was proposed so still approving it

[NewSoupVi]

I'm approving this but I think I'd like this to be the last thing we merge before actually hard deprecating the options system, because of that thing qwint mentioned

[NewSoupVi]

Which, as of a few seconds ago, this is the only PR remaining. So, whenever we wanna merge #3284, we can merge this first and then that