Update to ArrayInterface v3

[grahamas]

This would be super useful for working with the latest LoopVectorization, which requires ArrayInterface v3.

Referenced by the auto-PRs, #64 and #66, though somehow I doubt it's that simple

(P.S. Thanks so much for this package-- I use it constantly and unfortunately you only see that when I'm opening an issue...)

[Tokazama]

I'm actually working on that right now.

Oh, and the reason it's never a quick update with this package is because anything that I write here that is applicable to other arrays gets moved to ArrayInterface.jl as soon as I think it has a solid design. Typically that PR to ArrayInterface changes something and I end up having a breaking that is only slightly visible to most users.

[grahamas]

Awesome! And totally understandable. I follow ArrayInterface, too, so I see all the work you're doing over there.

[Tokazama]

The 0.8 branch is where this all being fixed. It's taking me a while because I'm trying to clean a bunch of dead code and fix some long standing issues (mostly I hate how concatenation works in the current version, but I have to make breaking changes to fix it).

[Tokazama]

Update: I was close to a working release, but then I realized I could cut out a bunch of code (and probably improve performance and avoid bugs) if I just implemented something in ArrayInterface.jl.

[grahamas]

There's some funny business going on with Revise compatibility, now--- the version of Revise that's compatible with this version of AxisIndices doesn't like to precompile on v1.7. This isn't a "please fix" nor am I 100% certain what's going on; I'm not currently actively using the package, and only noticed because AxisIndices was still installed in my default env when I booted up v1.7. Removing it fixed the problem. Just a heads up.