6.3.0

• Bugfix: IllegalArgumentException while expanding a Mesh.
• Extended Heart.writeImage() to write BMPs, GIFs, and JPEGs.
• Added an option to Validate to configure the type of exception
  thrown for a null argument.
• Modified PointVisualizer to configure its render bucket
  and disable shadows.
• Reduced argument validation when assertions are disabled.
• Added to the library:
  • Dumper.dump() methods for a Camera
  • MyAnimation.findKeyframeIndex() for a TransformTrack
  • MyCamera.fovX()
  • MyCamera.xDegrees()
  • MyCamera.xTangent()
  • MyMath.clamp() for ints
  • MyMath.easeInQuartic()
  • MyMath.easeOutQuartic()
  • MyString.findIndex()
  • a Vector3i class
• Publicized many loggers.
• Upgraded Gradle to v6.8.1