Add styles and remove duplicate objects

Changes

• Styles

  • Added known styles and inline styles
    • Currently, only basic known styles are supported (types of filters are not considered).
  • Stroke styles
    • Line cap
    • Line join
    • Stroke color
    • Stroke width
    • Stroke alignment (middle, inside, outside)
    • Dashed stroke
  • Fill styles
    • Fill color
  • Blend styles
    • Opacity
  • Support for RGB, CMYK, and GRAY colors.

• Support unfilled and unstroked objects with a caveat: subsequent objects may inherit no-fill or no-stroke if not explicitly set

• Remove duplicate objects

  • Added functionality to detect duplicate objects marked with pseudo comments (%_).
  • The deduplication process now considers the presence of known styles, deferring the deduplication step until the next object is found.

• Path close/open

  • Close/open control paths based on baked object's fill path, use start/end point coincidence as fallback.

• Added first_subsection_of_type_recursive and some parser changes

Checklist

• Change is tested
• Change is documented.

• Licenses are up to date