[feature request] Support icon color replacement

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**maptalks's version and what browser you use?**
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**Issue description**
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支持`markerFill` 支持 `markerFile` 类型，现在可以通过`markerPath` 指定 `markerFill` 填充不同颜色，需要使图片类型也支持颜色填充（需要注意：markerFile对应的图片资源必须支持跨域）。

To Do List：
- [ ] Add label and assign to milestone
- [x] Coding
- [ ] optimization
- [ ] Test
- [ ] Doc update
- [ ] Whats new update

**Please provide a reproduction URL (on any jsfiddle like site)**
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效果示例：https://codepen.io/sakitam-fdd/pen/oNgqYYY?editors=0010

Start with the linked CodePen example and search the repository for markerFill, markerFile, and markerPath handling. Verify how image markers are rendered and how cross-origin image resources are loaded. Done means image markers accept color replacement consistently, with tests and documentation updated as listed in the issue.

Written by the indexing model from the issue text.