Kafka AMI promotion workflow by Orion

[brunoasr]

Summary

AMI promotion workflow:

A strategy using a tag in AMIs named application_environment has been developed for Kafka clusters to allow automatic selection of the latest AMI for a given environment.
This PR complements it by implementing a UI to manage this tag.

1. In the homepage, user selects tab AMI. A list of 4 tags is displayed, two of them fixed (application=kafka and application_environment=* - must exist) and two of them selectable with dropdown menus: OS and CPU Architecture. User selects OS and/or CPU Architecture accordingly and clicks Apply button.
2. Based on the tags selected, a list of available AMIs (limited to images created in the last 180 days) is retrieved from the cloud provider. It displays 3 columns: AMI Id, tag application_environment and Creation Date.
3. User selects an image from the list. Tag application_environment is displayed in a text field on the right, and decoded to a group of checkboxes, one for each environment.
4. User manipulates the tag value using the checkboxes. When ready they click Update button to update the tag.

Test Plan

[vahidhashemian]

Thanks for addressing the earlier comments. One more comment inline.