tyutjohn

feat: support paint order

4

This modifies desire to paint strokes below fills without having to duplicate an element. [paint-order](https://www.w3.org/TR/SVG2/painting.html#PaintOrder) is a standard specification of svg2 as discussed [#422 ](https://github.com/RazrFalcon/resvg/issues/422)

paint-order on svg doesn't work

5

I want to set margin for font, like the textStroke property of css, but it doesn't work when I use `paint-order:stroke`。This is an example on MDN ` stroke over stroke...