Wirespanner Beta v0.2.0

its like 0.1.0 but 1000% more epic and cooler and :3

• renamed normal mode to "pen mode"
• renamed model mode to "span matching mode"
• redid a lot of the pairing logic to support "span a/b mode"
  • span a/b is like span matching but instead of finding the exact same point in two models, it finds _A from model A and _B from model B and connects them together.
    • BE CAREFUL!! always face and click on your models so that:
      • the first model you click is your "A model" and the second is your "B model"
      • _A points in your A model are pointing toward your B model
      • _B points in your B model are pointing toward your A model
      • (eventually ill add toggles to flip these around live, so its not as much of a hassle
• added hover indicators in pen mode
• made wire tagging work
• added a new option to disable retroactive changes
• a lot of ui improvements:
  • mode switching is now at the top
  • replaced the seperate slack toggle and mode options with a single switch button that changes between having two (off/on) and three (off/per wire/per span) options depending on mode
  • made the ui draggable
  • added a button on the topbar to collapse the window, leaving only the modes and toggle buttton
  • added a button to reroll the random slack that gets added
    • it spins
• added auto update checks, the plugin will the latest tag from github if it doesnt match the one it has it will prompt to update.
  • the github request is only done once per session (on place load)