addFlagDebug method
Adds a debug flag to build a debug version of the app.
When set, builds a debug version of your app.
Defaults to false.
Example:
argParser.addFlagDebug(defaultsTo: true);
Implementation
void addFlagDebug({bool defaultsTo = false}) {
  addFlag(
    'debug',
    help: 'Build a debug version of your app.',
    defaultsTo: defaultsTo,
    negatable: false,
  );
}