[new feature] add divider component (#3755)

src/divider/test/__snapshots__/demo.spec.js.snap

@@ -0,0 +1,32 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`renders demo correctly 1`] = `
+<div>
+  <div>
+    <div class="van-divider van-divider--hairline"></div>
+  </div>
+  <div>
+    <div class="van-divider van-divider--hairline van-divider--content-center">
+      文本
+    </div>
+  </div>
+  <div>
+    <div class="van-divider van-divider--hairline van-divider--content-left">
+      文本
+    </div>
+    <div class="van-divider van-divider--hairline van-divider--content-right">
+      文本
+    </div>
+  </div>
+  <div>
+    <div class="van-divider van-divider--dashed van-divider--content-center">
+      文本
+    </div>
+  </div>
+  <div>
+    <div class="van-divider van-divider--hairline van-divider--content-center" style="border-color: #1989fa; color: rgb(25, 137, 250); padding: 0px 15px;">
+      文本
+    </div>
+  </div>
+</div>
+`;

src/divider/test/demo.spec.js

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+import Demo from '../demo';
+import demoTest from '../../../test/demo-test';
+
+demoTest(Demo);