Separate processing the path item. Properties are already cleansed.
Example 4.25. pathcanvas
<path /> <!-- path in TkPath --> <path d="M 100 100 L 356 100 L 200 300 z" fill="red" ... />
Essentially, only coords processing. The »group« properties must be processed for TkPath 0.3.
pathcanvas is being used by ::dumper::instantiate.
pathcanvas is being used by ::vgcode::dump-configure-PathCanvas, ::vgcode::dump-configure-Canvas clients.