Change score in case of microG

[Keyaku]

The app currently considers the following as problematic:

• com.android.vending - Spyware
• com.google.android.gms - Spyware
• com.google.android.gsf - Caution

This is correct if these were the actual Google apps, but in my case they're the microG replacements. They might not be entirely tracking-free, since they do depend on (some of) Google's networks, but they outright remove the majority of tracking elements and proxy other data, like location, to other providers.
If possible:

1. Find a way to detect a microG installation.
2. Lower the penalty if it's the case.