Feature request: Set ThumbnailImage

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This plugin is great, but I think the function of setting thumbnails should also be added

The interface for this function should be like this：

void setThumbnailImage(Uint8List bytes,FitMode? mode,int? cacheWidth, int? cacheHeight);

Parameter explanation:

bytes: The Uint8List of the thumbnail FitMode: Crop mode cacheWidth/cacheHeight:Decode at the specified size

Looking forward to this feature!!!