v3.1.0

• removed IAudioFileFormat classes.
• removed IAudioCodec classes.
• added IAudioDecoder and IAudioEncoder base classes.
• polymorphic buffers.
• polymorphic exceptions.
• polymorphic audio effects.
• changed HephCommon namespace to Heph.
• updated the FFmpeg and libmysofa build files.
• started using Doxygen for documentation.
• improved README and updated the examples.
• added version macros.
• added shared/static library creation to CMake.
• added tests.
• refactoring and bug fixes.

Release v2.0.0

• Removed StringBuffer class.
• Added FFmpeg build files to the dependencies.
• Added libmysofa build files to the dependencies.
• Added spatial audio.
• Added native API specific parameters.
• Some bug fixes and performance improvements.

Release v1.0.0

Update AndroidAudioSLES.md

Signed-off-by: Özgür <ozguronsoy@gmail.com>