struct implementing interface is boxed when passed to method that accepts interface (not generic method).
Removes IDexLevel (no other inheritors but EvoCriteria) and uses the primitive the data is stored (array, not IReadOnlyList) for slightly better perf.
Big thanks to @SciresM @sora10pls @Lusamine @architdate @ReignOfComputer for testing and contributing code / test cases. Can't add co-authors from the PR menu :(
Builds will fail because azure pipelines not yet updated with net6.
Might result in some illegal matches as it includes it for all evolutions in the chain, but whatever. Could probably rewrite the generator to only generate for different starting-species, but it's fine now.
Inline the max level calc
We don't do it for inaccessible static encounters in gen7/8, so anyone glitching/cheating will get an unrecognized encounter instead of "hey this exists, but you can't access it" error.
GetCanKnowMove should be checking for Smeargle knowing thousand arrows/waves.
GetNeededMoves should also return 1ka/1kw for needed moves, and then no encounters.
All uses of InvalidSketch are behind that method, so any future Smeargle modifications (like sketching a dummied move) will be checked (yay BDSP considerations).
I should probably have slot1/2 and static1/2 and trade1/2 implement GetBlank so that they can flexibly return a japanese/int/(kor) from template rather than default int, but eh
The Encounter dumper project already excluded all headbutt tree areas that can't be accessed. Every slot that is present in this project can be accessed.
Move the tree check to the eslot2 object
Check all gen2 slots regardless of crystal origin, since we now tag all of them with location IDs.
## Issue
We want to discard-but-remember any slots that aren't a perfect fit, on the off chance that a better one exists later in the search space. If there's no better match, then we gotta go with what we got.
## Example:
Wurmple exists in area `X`, and also has a more rare slot for Silcoon, with the same level for both slots.
* We have a Silcoon that we've leveled up a few times.
Was our Silcoon originally a Wurmple, or was it caught as a Silcoon?
* To be sure, we have to check the EC/PID if the Wurmple wouldn't evolve into Cascoon instead.
* We don't want to wholly reject that Wurmple slot, as maybe the Met Level isn't within Silcoon's slot range.
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Existing implementation would store "deferred" matches in a list; we only need to keep 1 of these matches around (less allocation!). We also want to differentiate between a "good" deferral and a "bad" deferral; I don't think this is necessary but it's currently used by Mystery Gift matching (implemented for the Eeveelution mystery gifts which matter for evolution moves).
The existing logic didn't use inheritance, and instead had static methods being reused across generations. Quite kludgy. Also, the existing logic was a pain to modify the master encounter yield methods, as one generation's quirks had to not impact all other generations that used the method.
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The new implementation splits out the encounter yielding methods to be separate for each generation / subset. Now, things don't have to check `WasLink` for Gen7 origin, because Pokémon Link wasn't a thing in Gen7.
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## Future
Maybe refactoring yielders into "GameCores" that expose yielding behaviors / properties, rather than the static logic. As more generations and side-gamegroups get added (thanks LGPE/GO/GameCube), all this switch stuff gets annoying to maintain instead of just overriding/inheritance.
## Conclusion
This shouldn't impact any legality results negatively; if you notice any regressions, report them! This should reduce false flags where we didn't defer-discard an encounter when we should have (wild area mons being confused with raids).
