[2.0>master] [MERGE #2568 @obastemur] License: Update License file and Third Party Notices

Merge pull request #2568 from obastemur:license_update

LICENSE.txt

@@ -2,6 +2,7 @@ ChakraCore
 The MIT License (MIT)
 
 Copyright (c) Microsoft Corporation
+All rights reserved.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal