add getArtistAblums and getAblums & Update README & Update test & replan directory

src/component/getArtistAlbums.js

@@ -0,0 +1,19 @@
+import request from 'request'
+import { origin, globalOption } from '../config'
+import { deepCopy } from '../util'
+
+const getArtistAlbums = (id, callback, limit = 3, offset = 0) => {
+  const option = deepCopy(globalOption)
+  const url = `${origin}/api/artist/albums/${id}?offset=${offset}&limit=${limit}`
+  const method = 'GET'
+  Object.assign(option, {url, method})
+  request(option, (err, res, body) => {
+    if(!err && res.statusCode == 200) {
+      let info = JSON.parse(body)
+      callback && callback(JSON.stringify(info, '', 2))
+    } else {
+      console.error(err);
+    }
+  })
+}
+export { getArtistAlbums }