Add support for svg sprite symbols

## General Questions

## Issue Type

- [ ] I have a question to ask about *how to use ECharts to ...*；我想提问如何使用 ECharts 实现某功能
- [ ] I have a bug to report；我想要报 bug
- [x] I have a feature to request, e.g.: *I'd like a new feature that ...*；我需要一个新功能
- [ ] I have a feature to enhance, e.g.: *The current feature should be improved in the way that ...*；我希望改进某个功能
- [ ] There's something wrong with the documents；文档有些问题
- [ ] Others, or I'm not sure which issue types to choose here；其他，或我不知道应该选什么类型

## Issue Details

ECharts currently supports symbols if you pass in a SVG path (https://ecomfe.github.io/echarts-doc/public/en/option.html#series-line.symbol). It would be nice if we could pass in a svg sprite sheet URL with a specific svg ID so that we can use a cached svg path rather than having to add more svg paths to the DOM.

### Expected Behavior

### Current Behavior

### Online Example

## Topics

## Anything Else We Need to Know

## Environment

- ECharts version；ECharts 版本: {DESCRIBE_HERE}

- [ ] It happens only on certain browsers or operating systems. 对于特定浏览器或操作系统才会出现的问题，请提供相应环境信息：{BROWSER_VERSION_OR_OS_INFORMATION_HERE}