Blender 5 compatibility, Fixed compatibility with existing UuuNyaa Assets, Batch operation for Append Material

[ulyssas]

I fixed/added the following:

Blender 5 compatibility:

Append now supports BLENDER_EEVEE (5.0+) as well as BLENDER_EEVEE_NEXT (4.2+).

I removed eevee.use_gtao and eevee.gtao_distance usage because they were actually non-functional after 4.2 and removed in 5.0.

Compatibility with existing UuuNyaa Assets

Append Assets were functional and even Append Sky will download, but old UuuNyaa Sky assets couldn't show parameters under the Append Sky panel. This is now fixed.

Batch operation for Append Material #163

Now Append Material has two Batch Operation feature.

• Copy to Active: for applying the material within the mesh
• Copy to Selection: for applying the material to selected mesh (excluding current one)