keep init command in sync with latest stable Greenwood CLI version when scaffolding package.json

[thescientist13]

Type of Change

• New Feature Request
• Documentation / Website
• Improvement / Suggestion
• Bug
• Other (please clarify below)

Summary

Currently as part of #778 and related to #770 , we are using a hardcoded package.json to use as the template for scaffolding. This means the version of the @greenwood/cli in the generated package.json will never bump unless we change it ourselves. It would be good to find a mechanism to try and keep this up to date as part of each new release.

Details

Basically, the init package should pull from its own package.json each time and use that as the installed version. The only question is, if it's an alpha.x release though, e.g. ^0.19.0-alpha.1 we should probably fallback to last minor, e.g. ^0.18.0.