Review application details payload

[whitlockjc]

When reviewing shipyardctl we realized that it would be nice to have more information about an image to display to the user.

[noahdietz]

I just realized, the Docker Engine API might give us some set of image details, but the ECR API may not provide that same set, same with the Registry API (which isn't exactly the same, and this is still being integrated with kiln as of rn). Just documenting the possibility, I don't have an example.

[noahdietz]

First example found:
GetImages(org, appName) with ECR will require an* additional API call of DescribeImages to get Created time

*the ecr.ListImages call is paged, so if more than X number of images in result, results will be divided into total/X pages and iterated over, each requiring a subsequent DescribeImages call

[noahdietz]

Similarly,
GetApplications(org) with ECR currently just returns the "repo" (aka application) name using its DescribeRepositories API...these results could be fed into the aforementioned GetImages(org, appName) API call but then we're stacking several ECR API calls.

This is not an argument against expanding the result details, just documenting the potential changes and their impact based on the current implementation.