Library to drive libavcodec for encode and decode.

Provides a DLL-exposed interface and can be used in managed .Net code.

Includes FrameWave for highquality image scaling, and a custom scaling algorithm for fast scaling on low-power processors.

• Update to VS2010
• Update libavcodec binaries from http://ffmpeg.zeranoe.com/builds/
• Clean up library, allow selection of codecs etc.
• Add C# interfaces