Add third party notices

ThirdPartyNotices.txt

@@ -0,0 +1,31 @@
+This file is based on or incorporates material from the projects listed below
+(Third Party IP). The original copyright notice and the license under which Microsoft
+received such Third Party IP, are set forth below. Such licenses and notices are
+provided for informational purposes only. Microsoft licenses the Third Party IP to you
+under the licensing terms for the Microsoft product. Microsoft reserves all other
+rights not expressly granted under this agreement, whether by implication, estoppel
+or otherwise.
+
+------------------------------------------------------
+Newtonsoft.Json
+------------------------------------------------------
+Copyright (c) 2007 James Newton-King
+All rights reserved.
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this
+software and associated documentation files (the "Software"), to deal in the Software
+without restriction, including without limitation the rights to use, copy, modify,
+merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be included in all copies
+or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.