Update lib/SpotCategories.php
Update lib/SpotCategories.php

Added Asian audio/written and keep compatibility with Spotnet "C16 Asian Audio/Written (Movies/Books)" from https://github.com/Spotnet/Spotnet/wiki/Category-Codes.
mesa57/spotweb,isuftin/spotweb-1,Spotweb/Spotweb,gijsroge/spotweb,gijsroge/spotweb,riksmith/Spotweb,GeoffreyDijkstra/spotweb,mbirth/spotweb,LeeThompson/spotweb,Blauwbek/spotweb,mesa57/spotweb,tswestendorp/spotweb,Spotweb/Spotweb,rodikal/Spotweb,tswestendorp/spotweb,GeoffreyDijkstra/spotweb,riksmith/Spotweb,rodikal/Spotweb,mbirth/spotweb,Blauwbek/spotweb,LeeThompson/spotweb,isuftin/spotweb-1,Blauwbek/spotweb,the-darkvoid/spotweb,the-darkvoid/spotweb