Allow assets to be named upon upload & show S3 link after upload is complete

Currently there is no way to name an asset other than taking the original filename. We should have a way to do this but before the asset is processed into thumbnail sizes and fingerprinted.

After the upload is complete we should display the S3 and Repo links like we do when viewing the asset after upload

I realize the upload will result in multiple files. So the result modal should should the S3 and Repo links for each individual resize type.

Something like this mockup:

Start by tracing the existing asset upload flow and the post-upload asset view shown in the screenshots. Identify where the original filename is assigned and where resize variants are returned; done means accepting a name before processing and showing S3 and repository links for every resize type after completion.

Written by the indexing model from the issue text.