SPEC-7531 Change Code/CryEngine to Code/Legacy (#1634)

* git mv Code\CryEngine Code\Legacy
* redirecting CMakeLists.txt
* fixing uic warning
* Some more CryEngine mentions
* validation scripts

Signed-off-by: Esteban Papp <81431996+amznestebanpapp@users.noreply.github.com>

Code/Legacy/CryCommon/Maestro/Bus/EditorSequenceBus.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project
+ * 
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+#pragma once
+
+#include <AzCore/Component/ComponentBus.h>
+#include <AzCore/EBus/EBus.h>
+
+namespace Maestro
+{
+    /**
+    * Global Notifications from the Editor Sequences
+    */
+    class EditorSequenceNotification
+        : public AZ::EBusTraits
+    {
+    public:
+
+        /**
+        * Called when a Sequence has been selected in Track View.
+        */
+        virtual void OnSequenceSelected([[maybe_unused]] const AZ::EntityId& sequenceEntityId) {}
+    };
+
+    using EditorSequenceNotificationBus = AZ::EBus<EditorSequenceNotification>;
+
+} // namespace Maestro