[WDF] Add Windows Driver Framework files

Takern from Microsoft GitHub repo:
d9c6040fe9

Licensed under MIT

sdk/lib/drivers/wdf/shared/inc/private/common/fxstump.hpp

@@ -0,0 +1,107 @@
+/*++
+
+Copyright (c) Microsoft Corporation
+
+Module Name:
+
+    FxStump.hpp
+
+Abstract:
+
+Author:
+
+Revision History:
+
+--*/
+
+#ifndef _FXSTUMP_HPP_
+#define _FXSTUMP_HPP_
+
+struct FxStump {
+
+protected:
+    FxStump(
+        VOID
+        )
+    {
+    }
+
+public:
+    PVOID
+    operator new(
+        __in size_t Size,
+        __in PFX_DRIVER_GLOBALS FxDriverGlobals
+        )
+    {
+        return FxPoolAllocate(FxDriverGlobals, NonPagedPool, Size);
+    }
+
+    PVOID
+    operator new(
+        __in size_t Size,
+        __in PFX_DRIVER_GLOBALS FxDriverGlobals,
+        __in POOL_TYPE PoolType
+        )
+    {
+        return FxPoolAllocate(FxDriverGlobals, PoolType, Size);
+    }
+
+    VOID
+    operator delete(
+        __in PVOID pointer
+        )
+    {
+        if (pointer) {
+            FxPoolFree(pointer);
+        }
+    }
+
+#if (FX_CORE_MODE == FX_CORE_USER_MODE)
+
+    PVOID
+    operator new[](
+        __in size_t Size,
+        __in PFX_DRIVER_GLOBALS FxDriverGlobals
+        )
+    {
+        return FxPoolAllocate(FxDriverGlobals, NonPagedPool, Size);
+    }
+
+    VOID
+    operator delete[](
+        __in PVOID pointer
+        )
+    {
+        if (pointer) {
+            FxPoolFree(pointer);
+        }
+    }
+
+#endif
+
+};
+
+struct FxGlobalsStump : public FxStump {
+
+private:
+    PFX_DRIVER_GLOBALS m_Globals;
+
+public:
+    FxGlobalsStump(
+        __in PFX_DRIVER_GLOBALS FxDriverGlobals
+        )
+    {
+        m_Globals = FxDriverGlobals;
+    }
+
+    PFX_DRIVER_GLOBALS
+    GetDriverGlobals(
+        VOID
+        )
+    {
+        return m_Globals;
+    }
+};
+
+#endif // _FXSTUMP_HPP_
+