Obj Improvements

What's Changed

• chore(deps): Bump golang.org/x/image from 0.17.0 to 0.18.0 by @dependabot in #33
• Add error wrapping in the obj package by @alexykot in #34
• feature: Add flag to optionally turn cylinder primitive into pipe by @alexykot in #35
• feature: Allow empty vertex normal in the short face format in .OBJ reader by @alexykot in #36
• Speed improvements to OBJ writer.

New Contributors

• @alexykot made their first contribution in #34

Full Changelog: v0.14.0...v0.15.0