cppfx - cpp/c++, b2 build

#include <utxcpp/core.hpp>
#include <chrono>

int main()
{
    // time point
    auto t1 = std::chrono::system_clock::now();

    // time duration
    auto td = std::chrono::seconds(47);

    utx::print_time(t1);
    utx::print(td);
}

#include <utxcpp/core.hpp>
#include <chrono>

int main()
{
    auto t1 = std::chrono::system_clock::now();
    auto t2 = std::chrono::system_clock::time_point{};
    t2 -= std::chrono::years(20);
    auto t3 = std::chrono::time_point<std::chrono::system_clock>{};
    t3 += std::chrono::years(100);
    auto t4 = t3 + (t1-t2) + (t1-t3);

    utx::print_time(t1, t2, t3, t4);
}