SVG plugin additions

[tkbd]

Thank you for reply.
Due to your advice,I understand why it cause.
I was specifying a style element in the SVG export options of Illustrator.

Then,It import successfully with coloring if the file is marked up by style and Presentation attribute.
Hereafter I decided to use Style or Presentation attributes options.

I left a following info for share information with every Wings3D users.
Adobe Illustrator has many export option,and they marked up different way.

• Supported :Color defined by Style attribute. e.g. style="fill:#f00;"
  
• Supported :Color defined by Presentation attribute. e.g. fill="#f00"
  
• No support :Color defined by Style element with CSS class. e.g. .red{fill:#f00;} and class="red"
  

(It also helps check the code of SVG files that made by unknown authoring software to see if colors can imported.)

thank you!