Added linux build

• Updated FFmpeg library to 4.4.2
• Added linux build
• Redesigned build process for C portion of the library
• Add Jenkins pipeline

Stream ID

There was a number of additional functionality added as I work towards the ability to do transcodes with the library.
The more important change was adding Stream ID to the AVStreams. This is required for SageTV for .ts/.ps files. And I assume possibly .mpg. I will be releasing a new version of the FormatParser that requires this version of the library.

Added methods for Metadata and extracting embedded pictures

• Added the ability to get metadata from containers and streams
• Added the ability to get embeded pictures from stream
• Made some breaking structure changes to the library. Some of the method prototypes have changed. And methods have been removed. I expect this to continue during alpha
• I made some changes to how versioning works when building the library. It now includes a build time and build number, as well as the version

Adding additional methods for transcoding

Adding additional methods for transcoding. This is just an intermediate build. There was one breaking change, so I update the MediaFormatParserPlugin to match the change.

Added win32 bit build

Added a 32bit build of the C libraries

Initial alpha release

Initial release for testing.