IO-3515 Additional packages and initial route &n simple queue polling.

server/ai/bill-ocr/bill-ocr-readme.md

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+Required Infrastructure setup
+1. Create an AI user that has access to the required S3 buckets and textract permissions.
+2. Had to create a queue and SNS topic. had to also create the role that had `sns:Publish`. Had to add `sqs:ReceiveMessage` and `sqs:DeleteMessage` to the profile.
+3. Created 2 roles for SNS. The textract role is the right one, the other was created manually based on incorrect instructions. 
+
+TODO:
+* Create a rome bucket for uploads, or move to the regular spot.