Apply transforms

- both absolute and relative arcs should be transformed correctly

===

<svg width="1200" height="1200">
  <path transform="translate(100) scale(2)" d="m200 200 h-100 a100 100 0 1 0 100 -100 z"/>
  <path transform="translate(100) scale(2)" d="M400 200 H300 A100 100 0 1 0 400 100 z"/>
</svg>

@@@

<svg width="1200" height="1200">
    <path d="M500 400H300a200 200 0 1 0 200-200z"/>
    <path d="M900 400H700a200 200 0 1 0 200-200z"/>
</svg>