Include R8

[SpirikleOfficial]

In Flutter, we are using R8 obfuscation. You can refer to this link as to how we release flutter apps now :
https://docs.flutter.dev/deployment/android
So when reading about proguard in your plugin documentation, there is some hesitance to use your plugin for our commercial app right now. The plugin is so good that we will implement in future if this issue is solved. Thanks for your time.