Allow uploading built artifacts to an s3 bucket

[mohammedzee1000]

While message queue works well for logs, sometimes, you to have built artifacts as well. For this, it might be a good idea to be able to upload them, to say an s3 bucket (https://docs.aws.amazon.com/sdk-for-go/api/service/s3/) optionally.

The workflow for this should look like

1. User will need to provide bucket info and credentials so an interface for accepting this
2. User needs to say which artifacts (path relative to repo root) he wants to push so interface to accepting this
3. Once build succeeeds, we can use API to upload this to a location based on jenkins project, kind and target of build.
4. Form link and stream the same to the logs