Auto merge of #13589 - splav:SVGElement#12974, r=pcwalton,Ms2ger

Support SVG element

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minimal SVG element implementation
---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #12974 (github issue number if applicable).

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python/tidy/servo_tidy/tidy.py

@@ -70,6 +70,7 @@ WEBIDL_STANDARDS = [
     "//w3c.github.io",
     "//heycam.github.io/webidl",
     "//webbluetoothcg.github.io/web-bluetooth/",
+    "//svgwg.org/svg2-draft",
     # Not a URL
     "// This interface is entirely internal to Servo, and should not be" +
     " accessible to\n// web pages."