BARCELONA — Toronto, New Jersey or Detroit. Those were several destinations on Bostjan Nachbar’s radar when he spoke to Sheridan Hoops in Lithuania this past September. But Nachbar’s newest employers are not in the Eastern Conference; they are in western Russia. UNICS Kazan announced today that the 31-year-old Slovenian forward had signed on for the rest of the season. Kazan will play its first Euroleague Top 16 game this Wednesday against Fenerbahce Ulker, and they hope Nachbar’s vast NBA and international experience can