v0.8.1

• Allow retagging in the zr reroll command and improve message formatting
  • Prototype Item and Weapons classes, including:
    • rarity / acquisitions
    • quality
    • all the weapon classing and typing
    • weapon instances
    • basic range weapon attacking
  • Split zardoz command into subcommands:
    • zardoz bot ... to run the bot server
    • zardoz zimulate ... to run weapons simulations
  • Weapon attack simulations with:
    • main combat actions
    • basic attack context (range, etc)
    • Matplotlib and terminal damage distribution plotting (for kitty and sixel backens)