Add ezdxf stubs

stubs/ezdxf/layouts.pyi

@@ -0,0 +1,20 @@
+from typing import Any, Iterator, Sequence, Union, Iterable
+from .entities import DXFEntity
+
+class BaseLayout:
+    def __iter__(self) -> Iterator[DXFEntity]: ...
+    def add_lwpolyline(self, points: Iterable[Sequence[float]], dxfattribs: dict[str, Any] = ...) -> Any: ...
+    def add_text(self, text: str, dxfattribs: dict[str, Any] = ...) -> Any: ...
+    def add_blockref(self, name: str, insert: Any, dxfattribs: dict[str, Any] = ...) -> Any: ...
+
+class Modelspace(BaseLayout):
+    @property
+    def name(self) -> str: ...
+
+class BlockLayout(BaseLayout):
+    @property
+    def name(self) -> str: ...
+
+class BlockRecords:
+    def new(self, name: str) -> BlockLayout: ...
+    def __iter__(self) -> Iterator[BlockLayout]: ...