Add xmltodict (#7472)

Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>

stubs/xmltodict/METADATA.toml

@@ -0,0 +1 @@
+version = "0.12.*"

stubs/xmltodict/xmltodict.pyi

@@ -0,0 +1,33 @@
+from _typeshed import SupportsRead, SupportsWrite
+from collections import OrderedDict
+from typing import Any, Mapping, overload
+
+class ParsingInterrupted(Exception): ...
+
+def parse(
+    xml_input: str | bytes | SupportsRead[bytes],
+    encoding: str | None = ...,
+    expat: Any = ...,
+    process_namespaces: bool = ...,
+    namespace_separator: str = ...,
+    disable_entities: bool = ...,
+    **kwargs: Any,
+) -> OrderedDict[str, Any]: ...
+@overload
+def unparse(
+    input_dict: Mapping[str, Any],
+    output: SupportsWrite[bytes] | SupportsWrite[str],
+    encoding: str = ...,
+    full_document: bool = ...,
+    short_empty_elements: bool = ...,
+    **kwargs: Any,
+) -> None: ...
+@overload
+def unparse(
+    input_dict: Mapping[str, Any],
+    output: None = ...,
+    encoding: str = ...,
+    full_document: bool = ...,
+    short_empty_elements: bool = ...,
+    **kwargs: Any,
+) -> str: ...