Loconautics-SNR hullsteel parity pack

A small resource pack to rename all locometal blocks in Steam N rail 1.21.1 port to hullsteel to match Loconautic's upcoming decorative blocks, because we shouldn't have to have two different names for blocks that are part of the same palette.

Revenue made by all of my projects will be donated to CALM (Campaign Against Living Miserably), which is a UK-registered charity that provides life-saving services and practical mental health support to anyone who needs it.