Open drivers for GCC Spirit LS

The driver for Fabmodules can be found here: https://github.com/jonnor/fabmodules

Status

Can cut/engrave paths with correct proportions, including upload to printer. PPI, speed and power settings are respected.

TODO (prioritized):

• Fix laser being turned on before the first point (critical)
• Fix output being flipped vertically (workaround: flip input image)
• Verify job offset being applied correctly
• Fix/enable relative job origin
• Fix hardcoded scaling factor with correct logic
• Add more workflows in Fabmodules (especially from .svg)
• Add automated tests: .svg/.path -> .gcc
• Document usage/setup
• Upstream the support to fabmodules project

Later/maybe:

• Implement native raster support
• Integrate support in Lasersaur app

Worklog

./worklog.md