This is a simple test program that solves the two body problem ODE system
It was created to test how a library from the MESA
stellar evolution code can be used in another different program. It uses a
Runge-Kutta method that can be found in the num library of the MESA src code
To run this code, first cd into src/mechanics and compile the code with ./mk.
Once the code is compiled, run ./orbit and that's it. It needs MESA installed,
which means that you need to set the $MESA_DIR env variable