feat(game): added guess a number game

#include <cstdlib>

#include <iostream>

#include <random>

const int high_bound = 100;

int main(int argc, char *argv[]) {

	int guess;

	int number = std::rand() % high_bound;

	std::cout << "I am thinking of number between 0 and " << high_bound << "\n";

	do {

		std::cout << "Guess a number: ";

		std::cin >> guess;

		if (number == guess) {

			std::cout << "Yes! I was thinking " << guess << '\n';

		} else {

			std::cout << "No, that's not quite it, my number was " << (number > guess ? "higher" : "lower") << '\n';

		}

	} while (guess != number);

	return 0;

}