semantic versioning rule

[loloicci]

This repository now uses versions formatted x.x.x-y.y.y-zzz where x.x.x is the original CosmWasm's release version, y.y.y is our release version and zzz is the additional info (e.g. dynamiclink1). This does not observe the semantic versioning 2.0.0 (https://semver.org/spec/v2.0.0.html).

Problems: Observing semantic versioning, -y.y.y-zzz means this is the prerelease version of x.x.x, so this means the version before the original's x.x.x has lower priority than it.

Solution: Using "build metadata" and use versions formatted "x.x.x+y.y.y-zzz" or "x.x.x+finschia-y.y.y-zzz". This has the same priority as "x.x.x".