add onanimation events (#121)

Co-authored-by: Lena Nordström <[email protected]>

Author: Lenanor

lib/events.js

@@ -35,6 +35,9 @@ module.exports = [
   'onfocus',
   'onblur',
   'oninput',
+  'onanimationend',
+  'onanimationiteration',
+  'onanimationstart',
   // other common events
   'oncontextmenu',
   'onfocusin',