[WDF] Add Windows Driver Framework files

Takern from Microsoft GitHub repo:
d9c6040fe9

Licensed under MIT

sdk/lib/drivers/wdf/shared/object/km/fxobjectkm.cpp

@@ -0,0 +1,120 @@
+/*++
+
+Copyright (c) Microsoft Corporation
+
+Module Name:
+
+    FxObjectKm.cpp
+
+Abstract:
+
+    Kernel mode implementations of FxObject APIs
+
+Author:
+
+
+Environment:
+
+    kernel mode only
+
+Revision History:
+
+--*/
+
+#include "fxobjectpch.hpp"
+
+extern "C" {
+
+#if defined(EVENT_TRACING)
+#include "FxObjectKm.tmh"
+#endif
+
+}
+
+
+extern "C" {
+
+_Must_inspect_result_
+NTSTATUS
+FxObject::_ObjectQuery(
+    _In_    FxObject* Object,
+    _In_    CONST GUID* Guid,
+    _In_    ULONG QueryBufferLength,
+    _Out_writes_bytes_(QueryBufferLength)
+            PVOID QueryBuffer
+    )
+
+/*++
+
+Routine Description:
+
+    Query the object handle for specific information
+
+    This allows dynamic extensions to DDI's.
+
+    Currently, it is used to allow test hooks for verification
+    which are not available in a production release.
+
+Arguments:
+
+    Object - Object to query
+
+    Guid - GUID to represent the information/DDI to query for
+
+    QueryBufferLength - Length of QueryBuffer to return data in
+
+    QueryBuffer - Pointer to QueryBuffer
+
+Returns:
+
+    NTSTATUS
+
+--*/
+
+{
+    // PFX_DRIVER_GLOBALS pFxDriverGlobals = Object->GetDriverGlobals();
+
+    //
+    // Design Note: This interface does not look strongly typed
+    // but it is. The GUID defines a specific strongly typed
+    // contract for QueryBuffer and QueryBufferLength.
+    //
+
+#if DBG
+
+    //
+    // These operations are only available on checked builds for deep unit
+    // testing, code coverage analysis, and model verification.
+
+
+
+
+
+
+
+
+
+
+
+
+
+    //
+
+    // Add code based on the GUID
+
+    // IsEqualGUID(guid1, guid2), DEFINE_GUID, INITGUID, inc\wnet\guiddef.h
+    UNREFERENCED_PARAMETER(Object);
+    UNREFERENCED_PARAMETER(Guid);
+    UNREFERENCED_PARAMETER(QueryBufferLength);
+    UNREFERENCED_PARAMETER(QueryBuffer);
+#else
+    UNREFERENCED_PARAMETER(Object);
+    UNREFERENCED_PARAMETER(Guid);
+    UNREFERENCED_PARAMETER(QueryBufferLength);
+    UNREFERENCED_PARAMETER(QueryBuffer);
+#endif
+
+    return STATUS_NOT_FOUND;
+}
+
+} // extern "C"