Multiple assets for some emoji

[mikuhl-dev]

Some emoji have multiple files, for example Default High Contrast Boy contains boy_high contrast_default.svg and boy_high_contrast_default.svg

https://github.com/microsoft/fluentui-emoji/tree/main/assets/Boy/Default/High%20Contrast

[zDaleZ]

What's more, boy high contrast has two same files.

https://github.com/microsoft/fluentui-emoji/issues/90#issuecomment-1427394700 I remember that. But at that time, only this emoji has a redundant file.