Initial Commit
added wiringPi as git submodule
added Documentation,

refactored some code,
prepared for config header file
improved signal handler
fixup! improved signal handler
cleaned up .gitignore
added options.h to change default options and added some views of the circuit layout
fixup! added options.h to change default options and added some views of the circuit layout
Added Output files:

/dev/fan/rpm
/dev/fan/pwm