Backport package.json to master branch

Hi @DanielEverland,

Thanks for creating the awesome package. I work on https://github.com/openupm/openupm, which is an upcoming UPM registry for open source unity package (sneak preview). The service can build and publish UPM package direcly from git repo. For ScriptableObject-Architecture, however certain changes are required

• backport package.json from stable branch to master, located at Assets/So Architecture.
• stick to semver, where 1.6.2.1 is not a valid semver, but 1.6.3 is. I noticed it get corrected in later commit.
• make a new release 1.6.3.

The openupm build pipeline will checkout each tags that is valid semver, and locate the package.json file as the root, then run npm publish from there.

The changes benefit openupm, but are good practice in general.

[favoyang]

Sounds great, thanks for the effort. I will close this issue for now. But feel free to use this conversation to notify me about the coming 1.6.4 release.

[DanielEverland]

Makes sense. Next release is 1.6.4, I’ll ping you when it’s done, just to make sure everything’s working as-intended 😃