[SDK] [Android] Release v4.0.7

Changelog:

  • Upgrade the last dependencies still using pre-AndroidX support libraries. Without this change you needed to use android.enableJetifier=true.
  • Use compileSdkVersion 30 and get rid of deprecated classes and method calls.
  • Multiple StrictMode violation fixes.
  • The SDK can now be imported in your own project as a project dependency without altering its build.gradle files. This makes it easier to hack it and contribute back to the community.