Initial release

• Old versions of overhauled parts are hidden
  • They are removed from the tech tree. In existing saves, this does not affect nodes already purchased
  • They are removed from all categories in the VAB and SPH
  • They are retained in the game files so active craft will still function normally
• Testing contracts are added to overhauled parts (copied from old part versions)
• Part variants are renamed to distinguish between them
  • Attachment ring engine variants get a -A suffix
  • Boattail engine variants get a -B suffix
  • Compact engine variants (not published) would get a -C suffix
  • Old part variants get a -Z suffix
• FilterExtensions support (overhauled parts are added to the Squad category)