feat: add update() to Cr3, Dr7, SFMask, UCet, SCet, mxcsr, rflags, and XCr0

[mkroening]

This adds update(), akin to update() on Cr0, Cr4, and Efer to the following types/modules:

• Cr3
• Dr7
• SFMask
• UCet
• SCet
• mxcsr
• rflags
• XCr0

[Freax13]

Thank you for your contribution!

Looks good to me! 🎄

I only needed update() on XCr0 myself, but we could also add update() to Cr3, Dr7, SFMask, UCet, SCet, and rflags, if you think that made sense.

That sounds reasonable to me. Do you want to add these proposed changes to this PR or should we leave this for a later PR?

[mkroening]

Do you want to add these proposed changes to this PR or should we leave this for a later PR?

I can add them to this PR. 👍

[mkroening]

All done! :)

[Freax13]

Looks good to me, thanks! 🎄