message: feat(viewer): added unit support for blocks & nested blocks
  note: this is a bit of a wider change as extra scaling flags needed to be added to prevent it when
  not needed - namely inside block instances, which get transformed anyway later; otherwise double
  scaling would happen.
diff: @@ -230,6 +230,8 @@ export default class SceneObjectManager {
  group.userData = wrapper.meta
  if ( addToScene ) {
  + // Note: only apply the scale transform if this block is going to be added to the scene. otherwise it means it's a child of a nested block.
  + group.applyMatrix4( wrapper.extras.scaleMatrix )
  this.objectIds.push()
  this.solidObjects.add( group )
  }
  