WS2801_Soft Library added

-WS2801_Soft is a modified WS2801 library provided by Adafruit
It's been modified to control 3, 6, or 9 individual strings of 9 LEDs
using the soft SPI implementation.  All chains share the clock pin and
have a dedicated data pin (running 6 strings requires 7 pins)

-also sorted things into folders
-added a test sketch for the new LED library (test1)