👏👏 FSPlayer 1.0.3

• support give up setup AudioSession on iOS platform #60
• support async destroy player when set player to nil even though not call shutdown
• improve playveiw animation
• add g726le and g726be decoders
• fix videotoolbox can't decode some h264 video bug
• rename subtitle option to subtitle_mix
• support custom audio rendering
• support get video-master diff
• add libwebp decoder
• add webp demuxer for animated webp images
• fix removeFromSuperview triggered reshape crash when use OpenGL backend
• fix the display of PNG images with transparency channels