CLI v0.0.14

• Fixes #59
• Adds support for #58
  • Settings JSON will now have a version field moving forward.
  • M2 is no longer automatically added at the end of g-code output.
    • If you use an external settings file, the previous behavior is kept. To get the new behavior, you can re-export your settings: svg2gcode --settings settings.json --export settings_new.json. This will add a version field and insert M2 in the program end sequence.