Add more defaults to the stdlib (#9606)

Continuing work towards #8988.

The first five commits were created using stubdefaulter on various Python versions; the following commits were all created manually by me to fix various problems. The main things this adds that weren't present in #9501 are:

- Defaults in Windows-only modules and Windows-only branches (because I'm running a Windows machine)
- Defaults in non-py311 branches
- Defaults for float parameters
- Defaults for overloads

stdlib/modulefinder.pyi

@@ -43,8 +43,8 @@ class ModuleFinder:
     else:
         def __init__(
             self,
-            path: list[str] | None = ...,
-            debug: int = ...,
+            path: list[str] | None = None,
+            debug: int = 0,
             excludes: Container[str] = ...,
             replace_paths: Sequence[tuple[str, str]] = ...,
         ) -> None: ...