Fix for incorrectly scaled bounding volumes when switching avatars

Make sure to explicitly set the _geometryToRigTransform in Rig::initJointStates().

This should fix small bounding volume when switching from the Gamebot avatar (which has 0.008 scaling)
to another avatar (which ususally have 0.01 scaling).

libraries/animation/src/Rig.cpp

@@ -168,6 +168,8 @@ void Rig::destroyAnimGraph() {
 void Rig::initJointStates(const FBXGeometry& geometry, const glm::mat4& modelOffset) {
     _geometryOffset = AnimPose(geometry.offset);
     _invGeometryOffset = _geometryOffset.inverse();
+    _geometryToRigTransform = modelOffset * geometry.offset;
+    _rigToGeometryTransform = glm::inverse(_geometryToRigTransform);
     setModelOffset(modelOffset);
 
     _animSkeleton = std::make_shared<AnimSkeleton>(geometry);