docs: added icons story

packages/ui-icons/src/icons.stories.tsx

@@ -0,0 +1,34 @@
+import React from 'react';
+import { withKnobs, number, color } from '@storybook/addon-knobs';
+
+const iconContext = require.context('./icons/', false, /\.svg$/);
+const keys = iconContext.keys() as string[];
+const paths = keys.map(iconContext) as string[];
+
+export default {
+  title: 'Icons',
+  decorators: [withKnobs],
+};
+
+export const basic = () => {
+  const size = number('Size', 32, {
+    range: true,
+    min: 16,
+    max: 128,
+  });
+  return (
+    <div className="e-grid style-uniform">
+      {paths.map(icon => (
+        <svg
+          key={icon}
+          fill={color('Color', 'rgba(0,0,0,1)')}
+          style={{
+            width: size,
+            height: size,
+          }}>
+          <use xlinkHref={`${icon}#Layer_1`} width={size} height={size} />
+        </svg>
+      ))}
+    </div>
+  );
+};