Replace device_info with device_info_plus

[edlman]

Please consider replacing device_info pkg with device_info_plus pkg. As described on device_info page

This plugin has been replaced by the Flutter Community Plus Plugins version, device_info_plus. No further updates are planned to this plugin, and we encourage all users to migrate to the Plus version. Critical fixes (e.g., for any security incidents) will be provided through the end of 2021, at which point this package will be marked as discontinued."

[ollyde]

I've made a pull request here https://github.com/BestBurning/platform_device_id/issues/26