Blue Skies 3D Pack

Added 3D models for the baneful mushroom, snowcap pinhead mushroom, and all vines. Fixed model for poison arc so it appears better in item frames. Adjust moonstone and spiky shields so they have the correct size when displayed in item frames.

Feedback is welcome!

I will not backport this to versions before 1.18.2. I will be porting as I transition from version to version on my personal pack.

Please do not repost these. Just share a link to this page if you want to share!