Kurt Eckhardt 0257d0473e SPI Transfer(buf, cnt) use FIFO 16 bit Update SPI.transfer(buf, cnt) to use the FIFO queue to speed things up. It also speeds things up to pack the data into 16 bit transfers instead of 8 bits. As this code is more complicated, no longer makes sense to inline it, so functions moved from .h to .cpp files. SPI1 and SPI2 transfer functions were updated as well for T3.5 and T3.6		pirms 8 gadiem
examples	Update examples to use transactions	pirms 9 gadiem
README.md	Update readme	pirms 10 gadiem
SPI.cpp	SPI Transfer(buf, cnt) use FIFO 16 bit	pirms 8 gadiem
SPI.h	SPI Transfer(buf, cnt) use FIFO 16 bit	pirms 8 gadiem
keywords.txt	Add SPI2 as keyword	pirms 8 gadiem
library.properties	Add library.properties	pirms 8 gadiem

SPI Library for Teensy