feat: add support for schema app invitations

[rossiam]

Add support for schema invitations.

Checklist

• [x] I have read the CONTRIBUTING document
• [x] Any required documentation has been added
• [x] My code follows the code style of this project (npm run lint produces no warnings/errors)
• [x] I have added tests to cover my changes

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: e52b3e4495d74800fbfec05461e3edc0733964aa

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

This PR includes changesets to release 1 package

| Name | Type | | ---------------- | ----- | | @smartthings/cli | Minor |

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