Fix priority of ABI tags

[zanieb]

Brings us in-line with Python's behavior:

1. Prioritize none tags after all of the relevant platform tags
2. Omit none tags for CPython versions less than the current version
3. Prioritize major (i.e. py3-none) version tags over minor (i.e. py3x-none) version tags less than the current version
4. Add a none-any tag for the current CPython version

Test plan

Tested on my Linux machine with a script to emit tags at the desired glibc version:

from packaging import tags
import re

exclude = re.compile("_(21|22|23|24|25|26|27|28|29|30|31|32|33|34|35|36|37|38|39)_")

for tag in tags.sys_tags():
    if exclude.search(str(tag)):
        continue
    print(tag)

Then performed a diff with the snapshot in tags.rs

[zanieb]

I'd like to do some additional verification that changes are correct on other platforms too e.g. macOS

[zanieb]

I've confirmed this is correct on macOS