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### Preflight Checklist
* [x ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
* [x ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
* [x ] I have searched the issue tracker for a feature request that matches the one I want to file, without success.

### Problem Description
Following #20322 - for me as an Electron user, it's unacceptable that `second-instance` manipulates order of arguments, it's incompatible e.g. with [yargs](https://github.com/yargs/yargs) style (e.g. `myapp.exe -a 1 -b 2`). Current behaviour on Windows is confusing, not well documented.

### Proposed Solution
Although I have [described a workaround](https://github.com/electron/electron/issues/20322#issuecomment-617773983), I would like Electron to somehow overcome Chromium deficiency and pass the original `argv` to the `second-instance` event or pass any custom data comfortably.

I think the best solution could be by adding a string only param msg to `app.requestSingleInstanceLock(msg)` and the [`second-instance`](https://www.electronjs.org/docs/api/app#event-second-instance) would returns the fourth value `msg`.

Other solution may be:
1. `second-instance` would get the original `argv`, not the Chromium one. 
2. If a user pass a custom data `app.requestSingleInstanceLock(argv)`, then the `second-instance` would return this custom data as `argv`, probably processed by `JSON.parse(JSON.stringify(argv))`.

shell/browser/api/electron_api_app.cc
char temporaryCString[kCStringSize] = {0};
  CFStringGetCString(value, temporaryCString, kCStringSize,
                     kCFStringEncodingUTF8);
  region = temporaryCString;
#else
  const char* locale_ptr = setlocale(LC_TIME, nullptr);
  if (!locale_ptr)
    locale_ptr = setlocale(LC_NUMERIC, nullptr);
  if (locale_ptr) {
    std::string locale = locale_ptr;
    std::string::size_type rpos = locale.find('.');
    if (rpos != std::string::npos)
      locale = locale.substr(0, rpos);
    rpos = locale.find('_');
    if (rpos != std::string::npos && rpos + 1 < locale.size())
      region = locale.substr(rpos + 1);
  }
#endif
  return region.size() == 2 ? region : std::string();
}
void App::OnSecondInstance(const base::CommandLine& cmd,
                           const base::FilePath& cwd) {
  Emit("second-instance", cmd.argv(), cwd);
}
bool App::HasSingleInstanceLock() const {
  if (process_singleton_)
    return true;
  return false;
}
bool App::RequestSingleInstanceLock() {