Add Boost libraries

[dehilsterlexis]

We need to add boost library to be able to handle Unicode files correctly.

https://tpaschalis.github.io/cpp-utf8/

http://cppcms.com/files/nowide/html/

Setting Environment variables
https://youtu.be/-YEaxAFIMhc

Install Boost
https://youtu.be/3IelB1VBW6w

Including in Actions in Github
https://raymii.org/s/articles/Github_Actions_cpp_boost_cmake_speedup.html

#include <boost/nowide/fstream.hpp>
#include <boost/nowide/cout.hpp>
using boost::nowide::ifstream;
using boost::nowide::cout;

// #include <fstream>
// #include <iostream>
// using std::ifstream;
// using std::cout;

#include <string>

int main() {
    ifstream f("UTF-8 (e.g. ß).txt");
    std::string line;
    std::getline(f, line);
    cout << "UTF-8 content: " << line;
}