Option for full target path

Thank you for the plugin and enhancements done for that. Currently there's options for `--assetPath` and `--android-project`. However in my mind more useful would be if `--android-project` path would equal to the actual full path to the resource folder root. I.e. you could define any replacement for the default android/app/src/main. For example I'm using flavors for different white label versions and I would require path to be `android/app/src/app1` under where the `res` folder would be created.