Friday & Saturday, October 20 & 21:  Kaua`i Chocolate & Coffee Festival.  A celebration of all things chocolate and coffee with lots of sampling, educational displays and workshops, entertainment and exhibitor booths, featuring a variety of chocolate and coffee products from around the state.  Enjoy farm tours, informative classes, workshops/demonstrations, live entertainment, a chocolate & coffee pampering station, a silent auction, keiki activities, sampling and much more. Hanapepe Rd., Historic Hanapepe Town. Friday 5 p.m. to 9 p.m., Saturday 10…