[WDF] Add Windows Driver Framework files

Takern from Microsoft GitHub repo:
d9c6040fe9

Licensed under MIT

sdk/lib/drivers/wdf/shared/inc/private/um/fxrequestbufferum.hpp

@@ -0,0 +1,69 @@
+/*++
+
+  Copyright (c) Microsoft Corporation
+
+  Module Name:
+
+  FxRequestBufferUm.hpp
+
+  Abstract:
+
+  This module implements um specific functions for FxRequestBuffer.
+
+  Author:
+
+
+
+  Environment:
+
+  User mode only
+
+  Revision History:
+
+  --*/
+
+#ifndef _FXREQUESTBUFFERUM_HPP_
+#define _FXREQUESTBUFFERUM_HPP_
+
+__inline
+VOID
+FxRequestBuffer::SetMdl(
+    __in PMDL Mdl,
+    __in ULONG Length
+    )
+{
+    UNREFERENCED_PARAMETER(Mdl);
+    UNREFERENCED_PARAMETER(Length);
+
+    ASSERTMSG("Not implemented for UMDF\n", FALSE);
+}
+
+__inline
+NTSTATUS
+FxRequestBuffer::GetOrAllocateMdlWorker(
+    __in PFX_DRIVER_GLOBALS FxDriverGlobals,
+    __deref_out PMDL*       Mdl,
+    __in BOOLEAN *          ReuseMdl,
+    __in LONG               Length,
+    __in PVOID              Buffer,
+    __inout size_t*         SizeOfMdl,
+    __in BOOLEAN            UnlockWhenFreed,
+    __deref_out_opt PMDL*   MdlToFree
+        )
+{
+    UNREFERENCED_PARAMETER(FxDriverGlobals);
+    UNREFERENCED_PARAMETER(Mdl);
+    UNREFERENCED_PARAMETER(ReuseMdl);
+    UNREFERENCED_PARAMETER(Length);
+    UNREFERENCED_PARAMETER(Buffer);
+    UNREFERENCED_PARAMETER(SizeOfMdl);
+    UNREFERENCED_PARAMETER(UnlockWhenFreed);
+    UNREFERENCED_PARAMETER(MdlToFree);
+
+    ASSERTMSG("Not implemented for UMDF\n", FALSE);
+
+    return STATUS_UNSUCCESSFUL;
+}
+
+
+#endif // _FXREQUESTBUFFERUM_HPP_