The collection view cell now plays sounds

Signed-off-by: Darius Elphick <dariuselphick@gmail.com>
Audio duration is now fetched by each WDESpice asynchronously

Signed-off-by: Darius Elphick <dariuselphick@gmail.com>
Added pausing

Signed-off-by: Darius Elphick <dariuselphick@gmail.com>