Replaced copy_tree from distutils with copytree from shutil to fix script crashing

[carpit680]

Replaced copy_tree from distutils with copytree from shutil to fix script crashing with below error:

SCRIPT ERROR

Traceback (most recent call last):
File "/Users/local/Library/Application Support/Autodesk/Autodesk Fusion 360/API/Scripts/URDF_Exporter/URDF_Exporter.py", line 7, in
from .utils import utils
File "/Users/local/Library/Application Support/Autodesk/Autodesk Fusion 360/API/Scripts/URDF_Exporter/utils/utils.py", line 12, in
from distutils.dir_util import copy_tree
ModuleNotFoundError: No module named 'distutils'

[DanielEikelenboom]

Got this error as well, and this fixed it. Thanks!