Core: typing for Option.default and a few other ClassVars (#2899)

* Core: typing for `Option.default` and a few other `Option` class variables

This is a replacement for https://github.com/ArchipelagoMW/Archipelago/pull/2173

You can read discussion there for issues we found for why we can't have more specific typing on `default`

instead of setting a default in `Option` (where we don't know the type), we check in the metaclass to make sure they have a default.

* NumericOption doesn't need the type annotation that brings out the mypy bug

* SoE default ClassVar

worlds/soe/options.py

@@ -1,5 +1,5 @@
 from dataclasses import dataclass, fields
-from typing import Any, cast, Dict, Iterator, List, Tuple, Protocol
+from typing import Any, ClassVar, cast, Dict, Iterator, List, Tuple, Protocol
 
 from Options import AssembleOptions, Choice, DeathLink, DefaultOnToggle, Option, PerGameCommonOptions, \
     ProgressionBalancing, Range, Toggle
@@ -8,13 +8,13 @@ from Options import AssembleOptions, Choice, DeathLink, DefaultOnToggle, Option,
 # typing boilerplate
 class FlagsProtocol(Protocol):
     value: int
-    default: int
+    default: ClassVar[int]
     flags: List[str]
 
 
 class FlagProtocol(Protocol):
     value: int
-    default: int
+    default: ClassVar[int]
     flag: str