Naming convention cleanup

[HadrienG2]

I greatly appreciate the work you did to make naming clearer and more consistent than the Intel intrinsics. That being said, there's still a bit of work to do to perfect this, particularly around shuffles and permute. However, that would be an API-breaking change by definition.

How would you feel about a patch for this ? Break API and bump semver release number, or keep the existing methods as deprecated with new aliases following the convention ?

[Lokathor]

Having a 0.6.1 that just does the deprecating is probably better, and then if a 0.7 is released for some other reason we could remove the old names entirely.