Summoning Rituals

Added

• an Indestructible Altar (#1 by wchen1990)
  • can be used for structures or central places where players have to go for rituals without being able to break it

Changed

• altar recipes no longer require at least one input item (#1 by wchen1990)
  • this allows recipes with only sacrifices
• recipe sacrifices now use the default region if none is specified in the recipe (#1 by wchen1990)
• the active texture animation of the altar is now more seamless (#1 by wchen1990)

Fixed

• incompatibility with Chisels and Bits