When exporting templates, draw fin roots correctly for fins-on-nose cones and fins-on-transitions #1227
Description
As reported by @MadRocketer on TRF: https://www.rocketryforum.com/threads/announcement-openrocket-version-22-02-public-beta-is-underway-download-it-now.171295/post-2250080
When a fin is placed on a transition or nose cone, the exported template still shows a straight edge.
Exports like this:
Obviously it would be preferable for the exported template to show the correct root edge contour.