adding "AgX - " to startup files for "Very High Contrast"

[cadsDanny]

several project startup files have errors in Blender v4.0, as with Weave, for example:

.../weave_done.py", line 209, in set_scene_props
TypeError: bpy_struct:
   item.attr = val: enum "Very High Contrast" 
      not found in (..., 'AgX - Very High Contrast', 'AgX - High Contrast', ...)

this is fixed by changing

209    scene.view_settings.look = "Very High Contrast"

to

209    scene.view_settings.look = "AgX - Very High Contrast"