Write files in PascalCase
E.g., MyFile.cpp or HeaderFile.hpp
This is not standard I'm just deciding this for this repo.
Include std lib headers first, then 3rd party libs, then custom headers last.
// std includes
#include <iostream>
#include <string>
#include <vector>
// 3rd party libs
#include <Eigen>
// custom
#include "MyFile.hpp"
#include "MyOtherFile.hpp"