Blåhaj

This is a major update to Blåhaj Mod.

• Added Blåvingad, a stuffed blue whale with a pocket for its mouth!
  • Based on the real life toy whale from IKEA from the collection with the same name.
  • You can carry a stack of items inside it.
  • Right click on an item stack, or right click a stack on it to put the stack in the whale.
  • Pick up the Blåvingad and right click on an empty slot to remove the item stack.
• For the time being, you cannot unload directly onto a stack, even if it fits (e.g. Blåvingad with 3 quartz unloading onto a stack of 8 quartz).
• Added 1.20.1 port (binary compatible with 1.20).