[improvement] rename packages dir to src (#3659)

src/steps/index.js

@@ -0,0 +1,37 @@
+import { createNamespace } from '../utils';
+import { GREEN } from '../utils/color';
+
+const [createComponent, bem] = createNamespace('steps');
+
+export default createComponent({
+  props: {
+    active: Number,
+    inactiveIcon: String,
+    direction: {
+      type: String,
+      default: 'horizontal'
+    },
+    activeColor: {
+      type: String,
+      default: GREEN
+    },
+    activeIcon: {
+      type: String,
+      default: 'checked'
+    }
+  },
+
+  data() {
+    return {
+      steps: []
+    };
+  },
+
+  render(h) {
+    return (
+      <div class={bem([this.direction])}>
+        <div class={bem('items')}>{this.slots()}</div>
+      </div>
+    );
+  }
+});