startProcess method
Start FawryPay SDK process.
Start FawryPay SDK process, whether it was initialized for payment,
or initialized for card tokenizer.
Returns a FawryResponse
type of the resulted data.
Throws exception if not completed well.
Implementation
@override
Future<FawryResponse> startProcess() async {
return await FlutterFawryPayPlatform.instance.startProcess();
}