Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com> -- v2: windowscodecs: Implement GetPreferredVendorGUID(). windowscodecs/metadata: Implement GetClassID(). windowscodecs/tests: Add some tests for metadata handler GetClassID(). windowscodecs/metadata: Replicate original stream position when creating writer instances from readers. windowscodecs/metadata: Restore original stream position on GetStream(). windowscodecs/tests: Add some tests for stream position handling when nested readers are used. windowscodecs: Implement CreateQueryWriterFromReader(). windowscodecs/metadata: Do not decorate 'wstr' items with a type name in returned queries. windowscodecs/tests: Add some more tests for query enumeration. windowscodecs: Implement query strings enumerator. https://gitlab.winehq.org/wine/wine/-/merge_requests/7407