Add Version Bump Script and Auto-Publish CI Job

[Pearce-Ropion]

Adds a version bump script (yarn bump)

• Allows choosing what version to bump to (major, minor, patch, pre-release)
• If the current version is already a pre-release, also allow choosing to "release" (remove the "pre" portion of the version)

Adds a CI job that detects if a version change was made in the package.json

• Only runs on changes to main branch
• Auto-tag when doing releases
• Uses Org NPM token