[kernel][C++] add some simple C++ wrapper and RAII holders for various locks

Just a wrapper around mutex and spinlock for now.

top/include/lk/cpp.h

@@ -0,0 +1,34 @@
+//
+// Copyright (c) 2021 Travis Geiselbrecht
+//
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT
+//
+// Copyright 2016 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+#pragma once
+
+// Helper routines used in C++ code in LK
+
+// Macro used to simplify the task of deleting all of the default copy
+// constructors and assignment operators.
+#define DISALLOW_COPY_ASSIGN_AND_MOVE(_class_name)       \
+    _class_name(const _class_name&) = delete;            \
+    _class_name(_class_name&&) = delete;                 \
+    _class_name& operator=(const _class_name&) = delete; \
+    _class_name& operator=(_class_name&&) = delete
+
+// Macro used to simplify the task of deleting the non rvalue reference copy
+// constructors and assignment operators.  (IOW - forcing move semantics)
+#define DISALLOW_COPY_AND_ASSIGN_ALLOW_MOVE(_class_name) \
+    _class_name(const _class_name&) = delete;            \
+    _class_name& operator=(const _class_name&) = delete
+
+// Macro used to simplify the task of deleting the new and new[]
+// operators. (IOW - disallow heap allocations)
+#define DISALLOW_NEW                       \
+    static void* operator new(size_t) = delete;   \
+    static void* operator new[](size_t) = delete
+