The Lambda accepts a UoW and checks if it reached MIN_COMPLETE or COMPLETE status.
The check is executed based on records in `slz_content_status` table and if a level of completeness achieved then the table `slz_uow_status` updated and a corresponding message is sent to the SNS topic.  

Expected input:
```json
{
    "dsp": "apple",
    "uow_id": "apple-20190808-sme-amStreams-v1_2",
    "licensor": "sme",
    "report_type": "amStreams"
}
```

Output is generic OK/FAILURE status with an error message:
```json
{
    "meta": {
      "status": "OK/FAILURE",
      "error": "[Optional] Something went wrong"
    }
}
```