Multiple issues on release 1.16.0

[SimonMarquis]

Since you open sourced sceneform you decided to no longer provide it through a regular maven repository. This requires every developer to include a direct source code dependency through a git submodule for instance (while I think you could have simply attached the corresponding src artifact).

• Unfortunately, this version is not targetting AndroidX, and having it as a module dependency prevents us from using the automated jetifier. You could argue that we could all edit the source code and migrate to AndroidX #1031
• Also, it seems that jitpack.io is having trouble providing the v1.16.0 tag: https://jitpack.io/#google-ar/sceneform-android-sdk/v1.16.0
• Augmented Faces's related classes were removed, withtout any alternative and the official doc still refers to it:
  • com.google.ar.sceneform.ux.AugmentedFaceNode
  • com.google.ar.sceneform.SkeletonNode
  • com.google.ar.sceneform.rendering.SkeletonRig

[anacoimbrag]

Also, ViewRenderable is crashing :( I think is something about sfb deprecation support.

[D31F43]

Positive. When I go to the tag, it shows its v1.16.0%C2%A0 rather than v1.16.0 which leads an error in jitpack