Monster M4sk: user control of eyes, user config from config.eye, user wiichuck control eyes&neopixels

[TonyLHansen]

M4_Eyes.ino: add a set of user_callable functions to control the eyes: eyesWide, eyesBlink, eyesToCorner, eyesNormal

file.cpp: add additional user_setup function that passes in the configuration file.cpp: add some accessor functions that use dwim() globals.h: declarations of new functions user_watch.cpp: fix case on HeatSensor.h for case-sensitive compilation systems user_watch.cpp: convert to using new eyesToCorner() user_*.cpp: add user_setup(doc) function new user_wiichuck.cpp: connects to WiiChuck that controls eyes and NeoPixel strip