Make logging display times for each chunk


Make output like this:
```
!!!!!! scene load res://src/World/World.tscn
    $Plants/Cactus
    load 10 ms in THREAD
    instance 13 ms in THREAD
    add 0 ms in MAIN!!!!!!!!!!!!

    $Plants/Cactus2
    load 2 ms in THREAD
    instance 13 ms in THREAD
    add 0 ms in MAIN!!!!!!!!!!!!
```