Migration guide

[spacekookie]

(I originally posted this on the parsec slack channel, but I thought maybe here it'll get more eyeballs)

Hi everybody!

I'm working on updating an ancient (relatively) project which depends on rust-tss-eapi 4.x and wondering if there's blog posts/ docs on migrating from version 6 -> 7

(In the 6 -> 7 transition the public types API changed quite a bit).

Specifically I'm wondering what happened to the AsymSchemeUnion type and if there's a replacement, or if I have to do this kind of mapping myself on now newly exposed constants.

Thanks!