Let the user specify a blender template file that is used for visualization

[maarzt]

User Story

A user might use the Blender visualization plugins a lot. But the user always makes the same changes to the Blender scene like adding more light sources. Changing camera position. Changing material etc...

The user should be able to specify a blender file that is used by the Mastodon blender plugin. The file would contain camera settings, light settings, geometry nodes etc. And this file would be used by the Blender plugin as template for visualization.