Simplify publication of prerelease packages to NPM

[kriswest]

The release procedures in the Reame.md: https://github.com/finos/FDC3/blob/main/README.md#releasing-fdc3-to-npm-for-maintainers require manual intervention by FINOS when issuing a prerelease, due to the fact that they tag whatever version is pushed as latest, which then needs to be manually reset via an account with rights on NPM (not shared with maintainers).

To simplify the issuing prereleases, we should:

• Check that all package version numbers are in sync (fail otherwise)
• Process the (common to all packages) version number to extract/detect prerelease details (2.2.0**-beta.1**).
• If a prerelease tag is found, prevent tagging as latest by specifying a different tag. This could either be the prerelease tag itself (e.g. beta) or simply prerelease