Version 2.0

It's been a while but finally, a new release which introduces a lot of great stuff 🎉!

Changelog

• Overhauled code to get rid of hull and minkowski - this means faster rendering and better compatibility with OpenSCAD workbench in FreeCAD.
• Added adjustable vane_count! This means that you can now generate a four fletch version (and ever more vanes work 🚀)
• Removed helical, helical_adjust and helical_direction - helical is now specified in degrees with vane_turn and it is enabled by setting vane_style to "helical"
• Added option to specify joint style (ball joints can now be swapped with simple holes for a pin or screw). (@tabashir in #7)
  • This required definition of new base shape, which is called "star". It can also be applied to the lid, which now uses it as a default for the inner side, so it is clearer how the lid fits the jig.
• Created fancy new drawings in FreeCADs TechDraw, so they are cleaner and more precise. This also means that updating drawings will be way easier in the future.
• Optional nock alignment guide, useful for wooden arrows for example (@RubenJnl in #4)
  • This was further improved by introducing nock_diameter to allow arrows with nocks wider than arrow shaft (@fgietzen in #8)
  • Rotation of the nock can be adjusted - either index vane always faces outward, or for even vane_count the nock can be rotated for better clearance
• Fixed uneven lid wall thickness
• HTML decoration for echo messages is no longer used with latest OpenSCAD version, as the HTML support was removed in 2021.01
• Removed all STL files from repository
• Other bug fixes and improvements