Fix #139656: FBX importer does not set normalmap textures as "non-color"

Normal maps (and generally all other non-color textures) were not
marked as non-color in the new FBX importer.

Pull Request: https://projects.blender.org/blender/blender/pulls/139725

tests/python/modules/io_report.py

@@ -380,6 +380,8 @@ class Report:
         desc = f" tex:'{tex.image.name}' ({rel_path}) a:{tex.use_alpha}"
         if str(tex.colorspace_is_data) == "True":  # unset value is "Ellipsis"
             desc += f" data"
+        if str(tex.colorspace_name) != "Ellipsis":
+            desc += f" {tex.colorspace_name}"
         if tex.texcoords != 'UV':
             desc += f" uv:{tex.texcoords}"
         if tex.extension != 'REPEAT':