Add Readme and license agreement

Author: ericjunwei

ADLX SDK License Agreement.pdf

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+# AMD Device Library eXtra - Software Development Kit (ADLX SDK)
+
+ADLX is a modern library and SDK designed to access features and functionality of AMD systems in the categories of Display, 3D graphics, Performance Monitoring, GPU Tuning and more.  The ADLX SDK is targeted primarily at developers and partners who are creating control and monitor applications for AMD devices.  
+
+The ADLX SDK contains the following components:
+- ADLX interface library
+- Headers
+- Documentation and code samples 
+
+The ADLX SDK is a fast and easy way to develop differentiated applications that run on AMD systems
+- Designed with quality and reliability at the core
+- Compatible with modern programming languages
+- Forward and backward compatible with AMD drivers
+- Global state synchronization
+- Access features and functionality in the areas of Display, 3D graphics, Performance Monitoring, GPU Tuning and more!
+
+Documentation for ADLX SDK can be found on GPUOpen at https://www.gpuopen.com/adlx
+
+### License
+* ADLX SDK is distributed under the licence in the root of the GitHub repository.
+
+### Attribution
+* AMD, the AMD Arrow logo, Radeon, Crossfire, and combinations thereof are either registered trademarks or trademarks of Advanced Micro Devices, Inc. in the United States and/or other countries.
+* Microsoft, DirectX, Visual Studio, and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
+