WaxedHolograms native example models

These four small templates are installed into models/converted only when their files are absent.
They exercise the existing block and item display paths; they are not the planned seven interactive hologram templates.
Use /model models and /model modelinfo <name> to inspect the template inventory.
The model command is an alias for /3dholo and shares its existing editor and storage.
display.view-range is the vanilla display multiplier: 1.0 means 64 blocks.
