Fixed compiler errors

Compiler complained about missing types:

config.alarm_en = (timer_alarm_t)1;
config.auto_reload = (timer_autoreload_t)1;

RGBW LED Stuff added

This version supports serial and parallel WS2811, WS2812 and SK6812 RGB LEDs.
Examples for the parallel LED driver are in the LEDs sub Folder

Individual addressable LEDs RGBW & Parallel

Added support for Neopixel style RGBW LEDs. Implemented parts of the graphics interface to be used with LEDs. Parallel mode up to 8 channels enabled.

Individual addressable LEDs alpha

This release adds serial I2S support that is also utilized to to control ws2812 (Neopixel) like LEDs