add _lsprof module (#11159)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

stdlib/_lsprof.pyi

@@ -0,0 +1,35 @@
+import sys
+from _typeshed import structseq
+from collections.abc import Callable
+from types import CodeType
+from typing import Any, Final, final
+
+class Profiler:
+    def __init__(
+        self, timer: Callable[[], float] | None = None, timeunit: float = 0.0, subcalls: bool = True, builtins: bool = True
+    ) -> None: ...
+    def getstats(self) -> list[profiler_entry]: ...
+    def enable(self, subcalls: bool = True, builtins: bool = True) -> None: ...
+    def disable(self) -> None: ...
+    def clear(self) -> None: ...
+
+@final
+class profiler_entry(structseq[Any], tuple[CodeType | str, int, int, float, float, list[profiler_subentry]]):
+    if sys.version_info >= (3, 10):
+        __match_args__: Final = ("code", "callcount", "reccallcount", "totaltime", "inlinetime", "calls")
+    code: CodeType | str
+    callcount: int
+    reccallcount: int
+    totaltime: float
+    inlinetime: float
+    calls: list[profiler_subentry]
+
+@final
+class profiler_subentry(structseq[Any], tuple[CodeType | str, int, int, float, float]):
+    if sys.version_info >= (3, 10):
+        __match_args__: Final = ("code", "callcount", "reccallcount", "totaltime", "inlinetime")
+    code: CodeType | str
+    callcount: int
+    reccallcount: int
+    totaltime: float
+    inlinetime: float