Initializes a xtd::diagnostics::stopwatch instance by using a simple class constructor.
#include <xtd/diagnostics/stopwatch>
#include <xtd/threading/thread>
#include <xtd/console>
#include <chrono>
using namespace std::chrono;
auto main()->int {
thread::sleep(10000_ms);
stopwatch.stop();
auto ts = stopwatch.elapsed();
auto elapsed_time = ustring::format("{0:H}:{0:M}:{0:S}.{1:D2}", ts, ts.milliseconds() / 10);
console::write_line("RunTime " + elapsed_time);
}