0.7.3

What's Changed

The code is now faster in a few ways. Additionally while we could previously only scale the cadquery shapes when adding them, now we can scale any of the inputs (step files, cq.Shapes, cq.Assembly) because we can now scale on export (to mesh or to h5m).

• using all CPU cores to mesh by @shimwell in #98
• adding scale_factor that scales mesh by @shimwell in #99
• exportBrep instead of step (faster save and read) by @shimwell in #96

Full Changelog: 0.7.2...0.7.3