clangformat support cuda file

[presburger]

No description provided.

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[presburger]

@chaoren ，please help review the code.

[chaoren]

I'm not a maintainer of this repository, so I'm not sure why you're asking me to review this. You'll probably want to sign that CLA in #211 (comment) though.

[presburger]

I'm not a maintainer of this repository, so I'm not sure why you're asking me to review this. You'll probably want to sign that CLA in #211 (comment) though.

thanks

[dbarnett]

Alright, thanks! Merging.