Send image urls

[TylerNoblett]

Sends presigned url for images stored on s3, so that the backend doesn't have to load all of them before sending the evidence data

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[TylerNoblett]

Alright! I'm able to the get the urls and pull the images out of band, and nothing is broken on development, so I think it's good to go. Once you guys approve, I'll squash the commits down into one since it got out of hand

[jrozner]

Given that we support gpc as an alternative backend for storage, are we going to land the changes to support the equivalent there before merging?

[TylerNoblett]

Given that we support gpc as an alternative backend for storage, are we going to land the changes to support the equivalent there before merging?

Good question! I added the code for gpc this morning (in a separate branch), but haven't tested it yet. I would assume that these changes will be wayyy faster and worth it, but thought I would let you guys test the AWS side of things, before I bother Chris and get him to setup everything on gpc. I can go ahead and ping him about it now though working with Chris to get an env setup in gcp