Added TVSxx00 family as alias of TVS0500
Added TVSxx00 devices family as alias of TVS0500. All these share footprint and symbol: http://www.ti.com/interface/circuit-protection/esd-protection-and-tvs-surge-diodes/products.html#p3197=26;43&p2192=Surge%20Protection&p810=Uni-Directional&sort=p3285;desc