Pipelines: Convert the TF "Image Captioning with Attention" tutorial to a pipeline

[sarahmaddox]

Convert the TensorFlow Image Captioning with Attention tutorial to a pipeline and where feasible use Kubeflow Pipelines reusable components in the pipeline.

[issue-label-bot]

Issue-Label Bot is automatically applying the label improvement/enhancement to this issue, with a confidence of 0.96. Please mark this comment with 👍 or 👎 to give our bot feedback!

Links: app homepage, dashboard and code for this bot.

[sarahmaddox]

@zanedurante will work on this tutorial as part of the Kubeflow Doc Sprint

/doc-sprint

[zanedurante]

@sarahmaddox Since I was already working on this project with the pipelines team, the pipeline was merged here in the pipelines samples repo (instead of kubeflow/examples).

PR here: kubeflow/pipelines#1591

[jtfogarty]

/area docs
/priority p2

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.