Following changes made

Tx component and app
Modified code to work on slicekit.
Added spdif_config.h file and changed main.xc to make work with different frequencies.
File names and function names changed as per coding standard.
App folder name changed to make it more specific.
Created doc folder inside app and module folder and placed rst files as per xSOFTip requirement.

Rx component
Only changed the application folder name.