[WDF] Add Windows Driver Framework files

Takern from Microsoft GitHub repo:
d9c6040fe9

Licensed under MIT

sdk/lib/drivers/wdf/shared/inc/primitives/km/mxlockkm.h

@@ -0,0 +1,115 @@
+/*++
+
+Copyright (c) Microsoft Corporation
+
+ModuleName:
+
+    MxLockKm.h
+
+Abstract:
+
+    Kernel mode implementation of lock
+    class defined in MxLock.h
+
+Author:
+
+
+
+Revision History:
+
+
+
+--*/
+
+#pragma once
+
+#include "DbgMacros.h"
+
+typedef KSPIN_LOCK MdLock;
+
+#include "MxLock.h"
+
+__inline
+MxLock::MxLock(
+    )
+{
+    CLEAR_DBGFLAG_INITIALIZED;
+
+    MxLock::Initialize();
+}
+
+__inline
+VOID
+MxLockNoDynam::Initialize(
+    )
+{
+    KeInitializeSpinLock(&m_Lock);
+
+    SET_DBGFLAG_INITIALIZED;
+}
+
+_Acquires_lock_(this->m_Lock)
+__drv_maxIRQL(DISPATCH_LEVEL)
+__drv_setsIRQL(DISPATCH_LEVEL)
+__inline
+VOID
+MxLockNoDynam::Acquire(
+    __out __drv_deref(__drv_savesIRQL) KIRQL * OldIrql
+    )
+{
+    ASSERT_DBGFLAG_INITIALIZED;
+
+    KeAcquireSpinLock(&m_Lock, OldIrql);
+}
+
+_Acquires_lock_(this->m_Lock)
+__drv_requiresIRQL(DISPATCH_LEVEL)
+__inline
+VOID
+MxLockNoDynam::AcquireAtDpcLevel(
+    )
+{
+    ASSERT_DBGFLAG_INITIALIZED;
+
+    KeAcquireSpinLockAtDpcLevel(&m_Lock);
+}
+
+_Releases_lock_(this->m_Lock)
+__drv_requiresIRQL(DISPATCH_LEVEL)
+__inline
+VOID
+MxLockNoDynam::Release(
+    __drv_restoresIRQL KIRQL NewIrql
+    )
+{
+    ASSERT_DBGFLAG_INITIALIZED;
+
+    KeReleaseSpinLock(&m_Lock, NewIrql);
+}
+
+_Releases_lock_(this->m_Lock)
+__drv_requiresIRQL(DISPATCH_LEVEL)
+__inline
+VOID
+MxLockNoDynam::ReleaseFromDpcLevel(
+    )
+{
+    ASSERT_DBGFLAG_INITIALIZED;
+
+    KeReleaseSpinLockFromDpcLevel(&m_Lock);
+}
+
+__inline
+VOID
+MxLockNoDynam::Uninitialize(
+    )
+{
+    CLEAR_DBGFLAG_INITIALIZED;
+}
+
+__inline
+MxLock::~MxLock(
+    )
+{
+    CLEAR_DBGFLAG_INITIALIZED;
+}