Fixes https://github.com/sbt/sbt/issues/6210
scodec-bits is published with pvp versionScheme (nice), this means that
we should just evaluate the version portion for pvp-ness, but I was
using `guessSecondSegment` that checks for Scala suffix. That's mistake
1.
`guessSecondSegment` assumes that the Scala suffix uses the given
ScalaModuleInfo, but with 2.13-3 sandwich we can't assume this.
In the reported case, Scala module is 3.0.0-M3 but scodec-bits uses
2.13. So that's mistake 2.
This attempts to correct both the mistakes.
1. Instead of `guessSecondSegment`, this adds a simpler `evalPvp`
function.
2. `guessSecondSegment` just looks for `_2.` or `_3` and ignores the
Scala module.
I'm now going to use `CacheStore.apply` in `JsonUtil` (used by cached resolution). This gets rid of `fileToStore` parameter from a bunch of classes and simplifies the setup around librarymanagement.