**Is your feature request related to a problem? Please describe.**
I am building an Application that requires frequent password input. It would be awesome, to have native Touch ID support on macOS.

**Describe the solution you'd like**
An easy solution to show the Touch ID authentication dialog on macOS.

**Describe alternatives you've considered**
Writing my own Node.js add-on, but I couldn't wrap my head around it

**Additional context**
Add any other context or screenshots about the feature request here.
<img width="1085" alt="touch bar bild 2019-02-02 um 09 58 04" src="https://user-images.githubusercontent.com/6825153/52162266-71285600-26d1-11e9-80a7-5f85cc50bf90.png">

atom/browser/api/atom_api_system_preferences.cc
Init(isolate);
#if defined(OS_WIN)
  InitializeWindow();
#endif
}
SystemPreferences::~SystemPreferences() {
#if defined(OS_WIN)
  Browser::Get()->RemoveObserver(this);
#endif
}
#if !defined(OS_MACOSX)
bool SystemPreferences::IsDarkMode() {
  return false;
}
#endif
bool SystemPreferences::IsInvertedColorScheme() {
  return color_utils::IsInvertedColorScheme();
}
#if !defined(OS_WIN)
bool SystemPreferences::IsHighContrastColorScheme() {
  return false;
}
#endif  
mate::Handle<SystemPreferences> SystemPreferences::Create(
    v8::Isolate* isolate) {
  return mate::CreateHandle(isolate, new SystemPreferences(isolate));
}
void SystemPreferences::BuildPrototype(