Rename arduino led driver to appease arduino IDE

diff --git a/arduino-rgb-led/arduino-rgb-led.ino b/arduino_rgb_led/arduino_rgb_led.ino
similarity index 100%
rename from arduino-rgb-led/arduino-rgb-led.ino
rename to arduino_rgb_led/arduino_rgb_led.ino

diff --git a/arduino-rgb-led/gamma.h b/arduino_rgb_led/gamma.h
similarity index 100%
rename from arduino-rgb-led/gamma.h
rename to arduino_rgb_led/gamma.h

diff --git a/arduino-rgb-led/gamma.py b/arduino_rgb_led/gamma.py
similarity index 100%
rename from arduino-rgb-led/gamma.py
rename to arduino_rgb_led/gamma.py

diff --git a/arduino-rgb-led/pwm_rgb_led_corrected.ino b/arduino_rgb_led/pwm_rgb_led_corrected.ino
similarity index 100%
rename from arduino-rgb-led/pwm_rgb_led_corrected.ino
rename to arduino_rgb_led/pwm_rgb_led_corrected.ino