Remove deprecated us of use_nodes from material.py

[tobiasjewson]

Remove use of material.use_nodes deprecated in Blender 5.0

material.use_nodes has been deprecated in Blender 5.0.

detailed explanation

• Removed use of use_nodes in the PlasterWrapper constructor and harvest_from_rendercontent.

fixes / resolves

Importing a .3dm file in Blender 5.0 currently fails with the error:

Python: Traceback (most recent call last):
  File "/Users/<USER>/Library/Application Support/Blender/5.0/extensions/user_default/import_3dm/__init__.py", line 201, in execute
    return read_3dm(context, options)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/<USER>/Library/Application Support/Blender/5.0/extensions/user_default/import_3dm/read3dm.py", line 121, in read_3dm
    converters.handle_materials(context, model, materials, update_materials)
  File "/Users/<USER>/Library/Application Support/Blender/5.0/extensions/user_default/import_3dm/converters/material.py", line 509, in handle_materials
    default_material(blmat)
  File "/Users/<USER>/Library/Application Support/Blender/5.0/extensions/user_default/import_3dm/converters/material.py", line 277, in default_material
    plaster = PlasterWrapper(blender_material)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/<USER>/Library/Application Support/Blender/5.0/extensions/user_default/import_3dm/converters/material.py", line 202, in __init__
    super(PlasterWrapper, self).__init__(material, is_readonly=False, use_nodes=True)
TypeError: ShaderWrapper.__init__() got an unexpected keyword argument 'use_nodes'

Removing the use of use_nodes resolves this and import apears to work in line with Blender 4.

This should fix #153 and fix #155 .