Implement versionize for arrays via const generics

[roypat]

Signed-off-by: Patrick Roy [email protected]

Reason for This PR

resolves a TODO. const generics have been stablized since 1.51

Description of Changes

Remove the macro generated impls up to array size 32 with a completely generic version based on const generics

License Acceptance

By submitting this pull request, I confirm that my contribution is made under
the terms of the Apache 2.0 license.

PR Checklist

[Author TODO: Meet these criteria.]
[Reviewer TODO: Verify that these criteria are met. Request changes if not]

• All commits in this PR are signed (git commit -s).
• The reason for this PR is clearly provided (issue no. or explanation).
• The description of changes is clear and encompassing.
• Any required documentation changes (code and docs) are included in this PR.
• Any newly added unsafe code is properly documented.
• Any user-facing changes are mentioned in CHANGELOG.md.

[roypat]

I'd absolutely love to get rid of the Default + Copy bound as well by using MaybeUninit (this is the stereotypical usecase for it according to the rust docs), but sadly that doesn't seem to be supported with generic T :( rust-lang/rust#61956