SVG 2.0 support

[RazrFalcon]

A meta-issue for SVG 2.0 support.

Known issues can be found by searching by the svg2 tag.

[dmtrKovalenko]

Just curios – when do you plan to add support for different features? I do need several features from svg v2 and curios can I contribute or you are not interested in supporting only subset of svg v2 issues?

Maybe we can feature flag them?

[RazrFalcon]

SVG2/CSS3 is huge. It would take years to implement. And don't really have much time except some weekends. So it would be ready when it would be ready. And yes, I do plan to support all of them. This is the whole point of resvg.

If you want to work on some parts - go ahead. But probably notify me first, so we would not work on the same task.

Also, there are tons of features that doesn't have a dedicated issue yet.

[RazrFalcon]

Superseded by the svg2 label.