Add `wil::println()` - C++23's `std::println()` but for HANDLEs

e.g (needs C++20):

void println(
  HANDLE handle,
  std::format_string<Args...> format,
  Args&&... args) {
  const auto buffer = std::format(format, std::forward<Args>(args)...) + '\n';
  DWORD bytesWritten = {};
  while (bytesWritten < buffer.size()) {
    const auto remaining = buffer.size() - bytesWritten;
    DWORD bytesWrittenThisBatch {};
    const auto result = WriteFile(
      handle,
      buffer.data() + bytesWritten,
      remaining,
      &bytesWrittenThisBatch,
      nullptr);
    if (!SUCCEEDED(result)) {
      throw std::system_error(result, std::system_category());
    }
    bytesWritten += bytesWrittenThisBatch;
  }
}

Would also probably want a wchar version taking an std::wformat_string

Start with the HANDLE-based println example in the issue and inspect the WIL repository for the appropriate utility entry point; no file or test is named. Confirm the C++20 formatting and WriteFile behavior, then determine how the wchar overload should fit. Done means both requested HANDLE-oriented forms are implemented and covered by the repository's applicable tests.