Implement GCP image flow

[JamesBock]

SafeSearch details:

• https://docs.google.com/document/d/1vxeHLg1fMLwhQJGW1kxWHuxi8D0XrkUj5BiC02I5RCQ/edit

• Images classified as VERY_LIKELY should be rejected

  • Sender should receive a different message, indicating that the image was rejected
  • Could include terms of use; possible suspension/blocking number if repeated offences (implement counter?)

• LIKELY and POSSIBLE images should be sent to a seperate GCP bucket for review by Organizer

  • "sequester" bucket should be set to delete images after image has been in the bucket for x amount of time

OCR/Classification details:

• If GCP lables images that are in the defined set of keywords, the image should be sent to the "sequester" bucket
• If GCP lables the image as text, it will be sent to OCR API and the text will be scanned for the set of keywords
  • Regex is the best solution for this?