折线图series中是否可以添加large属性，开启大数据优化

[fanlinhao0811]

What problem does this feature solve?

折线图series中是否像散点图一样添加large属性，开启大数据优化，当折线图渲染百万级数据时，使用datazoom，会很卡顿，散点图中有一个large属性，这边折线图是否可以也加上

What does the proposed API look like?

series:[{
type: 'line',
large: false
}]

[echarts-bot]

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[zimutao]

看现在api，折线没有large，有采样。