* Update real_time_clock.cpp
* Update real_time_clock.h
* Update sun.h
* Update sun.h
* Update sun.h
* Enable the sunAtLocation to be used externally
* Enable the sunAtLocation to be used externally
* Update sun.h
* Update sun.h
* update
* update
* update to only use one function
* Update sun.h
* Update sun.cpp