Add analytics-react package

[zikaari]

@silesky Please review the package.json with extra caution to make sure things are as they should be

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: ef2358a4bca70cdb99894dfa0fc105d30e1c7fdb

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@segment/analytics-react	Major

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[silesky]

Please review the package.json with extra caution to make sure things are as they should be

‘yarn constraints’ FTW! It’s like linting for your package.json!

[silesky]

Pushed a commit that fixes constraints.