解决zrender问题，painterCtors[rendererType] is not a constructor

总的来说是因为是因为渲染器注册的代码被 tree-shaked 了

在引入的代码手动显式的注册一下即可：

import * as zrender from 'zrender' ;
import CanvasPainter from 'zrender/lib/canvas/Painter';
zrender.registerPainter('canvas', CanvasPainter);

参考： https://github.com/ecomfe/zrender/issues/981