Icons for https://github.com/black7375/Firefox-UI-Fix/issues/962

* 1.25px import icon (from Photon)
* 1.25px stopwatch icon (from Photon)
* 1.25px refresh icon (from Acorn)
* 1.25px update circle icon (from Acorn)

icons/import.svg

@@ -0,0 +1 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="context-fill" fill-opacity="context-fill-opacity" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M4 2.25h10a.75.75 0 0 1 .75.75v10a.75.75 0 0 1-.75.75H4a.75.75 0 0 1-.75-.75v-2H2v2a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2V3a2 2 0 0 0-2-2H4a2 2 0 0 0-2 2v4.89h1.25V3A.75.75 0 0 1 4 2.25" clip-rule="evenodd"/><path fill-rule="evenodd" d="M.63 5.375c.345 0 .625.28.625.625v2.875h6.736L6.558 7.442a.625.625 0 1 1 .884-.884l2.5 2.5a.625.625 0 0 1 0 .884l-2.5 2.5a.625.625 0 1 1-.884-.884l1.433-1.433H.63A.625.625 0 0 1 .005 9.5V6c0-.345.28-.625.625-.625" clip-rule="evenodd"/></svg>

icons/profiler-stopwatch.svg

@@ -0,0 +1 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="context-fill" fill-opacity="context-fill-opacity" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M8 14.75a5.75 5.75 0 1 0 0-11.5 5.75 5.75 0 0 0 0 11.5M8 16A7 7 0 1 0 8 2a7 7 0 0 0 0 14" clip-rule="evenodd"/><path d="M9 9a1 1 0 1 1-2 0 1 1 0 0 1 2 0"/><path fill-rule="evenodd" d="M11.442 5.558a.625.625 0 0 1 0 .884l-3 3a.625.625 0 1 1-.884-.884l3-3a.625.625 0 0 1 .884 0" clip-rule="evenodd"/><path d="M5 .625C5 .28 5.28 0 5.625 0h4.75a.625.625 0 1 1 0 1.25h-4.75A.625.625 0 0 1 5 .625"/></svg>

icons/refresh-cw.svg

@@ -1,9 +1 @@
-<svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="context-fill" fill-opacity="context-fill-opacity" style="stroke-linecap:round;stroke-linejoin:round">
-  <clipPath id="a">
-    <path d="M.5 0h15v16H.5z"/>
-  </clipPath>
-  <g clip-path="url(#a)">
-    <path d="M14.875 2.667v4h-3.75M1.125 13.333v-4h3.75" style="fill:none;fill-rule:nonzero;stroke:context-fill;stroke-width:1.62px"/>
-    <path d="M2.694 6c.793-2.391 2.925-3.998 5.303-3.998 1.491 0 2.923.633 3.978 1.758l2.9 2.907M1.125 9.333l2.9 2.907c1.055 1.125 2.487 1.758 3.978 1.758 2.378 0 4.51-1.607 5.303-3.998" style="fill:none;fill-rule:nonzero;stroke:context-fill;stroke-width:1.62px"/>
-  </g>
-</svg>
+<svg width="16" height="16" viewBox="0 0 16 16" fill="context-fill" fill-opacity="context-fill-opacity" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M14.37 2.042c.345 0 .625.28.625.625V6.37c0 .345-.28.625-.625.625h-3.245a.625.625 0 1 1 0-1.25h2.62V2.667c0-.345.28-.625.625-.625M1.005 9.63c0-.345.28-.625.625-.625h3.245a.625.625 0 1 1 0 1.25h-2.62v3.078a.625.625 0 1 1-1.25 0z" clip-rule="evenodd"/><path fill-rule="evenodd" d="M7.997 2.627c-2.088 0-3.995 1.414-4.71 3.57a.625.625 0 0 1-1.186-.394c.87-2.626 3.228-4.426 5.896-4.426 1.67 0 3.265.71 4.434 1.955l.005.005 2.395 2.61a.625.625 0 1 1-.921.846l-2.393-2.608c-.941-1.002-2.21-1.558-3.52-1.558m-6.79 6.542a.625.625 0 0 1 .884.038l2.392 2.608c.941 1.002 2.21 1.558 3.52 1.558 2.088 0 3.995-1.414 4.71-3.57a.625.625 0 1 1 1.186.394c-.87 2.626-3.228 4.426-5.896 4.426-1.67 0-3.265-.71-4.434-1.955l-.005-.005-2.395-2.61a.625.625 0 0 1 .038-.884" clip-rule="evenodd"/></svg>

icons/update-circle.svg

@@ -0,0 +1 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="context-fill" fill-opacity="context-fill-opacity" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M7.562 4.39a.625.625 0 0 1 .876 0l2.887 2.84a.625.625 0 0 1-.877.891L8 5.711l-2.448 2.41a.625.625 0 1 1-.877-.891z" clip-rule="evenodd"/><path fill-rule="evenodd" d="M8 4.21c.345 0 .625.28.625.625v6.535a.625.625 0 1 1-1.25 0V4.835c0-.345.28-.625.625-.625" clip-rule="evenodd"/><path fill-rule="evenodd" d="M8 13.75a5.75 5.75 0 1 0 0-11.5 5.75 5.75 0 0 0 0 11.5M15 8A7 7 0 1 1 1 8a7 7 0 0 1 14 0" clip-rule="evenodd"/></svg>