Throw an error for unsupported categories in Gen2

[bzsurbhi]

Description of changes

Handle geo, analytics, rest API, predictions, interactions, notifications and custom resources. Detected these resources and added error statements in backend.ts.

Description of how you validated changes

Deployed the changes to sandbox, verified the error being thrown

Checklist

• [x] PR description included
• [x] yarn test passes
• [ ] Tests are changed or added
• [ ] Relevant documentation is changed or added (and PR referenced)
• [ ] New AWS SDK calls or CloudFormation actions have been added to relevant test and service IAM policies
• [ ] Pull request labels are added

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.