Ariyana Game Engine 0.1

This is my first release.

• Simple Orthodox C++ coding style and APIs
• Initial code for entity and core systems
• Cross-platform not only the code but also the textures and shaders will be converted to the target platform on the build.
• Async file I/O. Can pack assets inside the APK and load them from APK at runtime.
• Texture conversion and loading.
• Dear-ImGUI support.