add loading

src/icons/index.js

@@ -0,0 +1,17 @@
+import loading from './loading.svg';
+
+const Icons = {
+  loading: loading
+};
+
+function creatDomFromSvg(map) {
+  const result = {};
+  Object.keys(map).forEach(name => {
+    const tmp = document.createElement('div');
+    tmp.innerHTML = map[name];
+    [result[name]] = tmp.childNodes;
+  });
+  return result;
+}
+
+export default creatDomFromSvg(Icons);