Added TaskImage for AWS and an ability to use asterisk in image

[sparshev]

The change adds an ability to request Aquarium to prepare Image just like Snapshot before. This should help with automated building of the images with embedded caches.

Features:

• Encryption (re-encryption) - so even if you using not encrypted images as a base - the produced one will be encrypted
• Latest image by the name with asterisk - actually AWS feature, but now logic tries to find the latest image if there is multiple of them in the return.

Other changes:

• Fixed a couple of issues with openapi spec that failed the jenkins plugin build and added openapi spec yaml validation to CI.
• Switched to the newest version of openapi-codegen. Also tried ogen and it could solve some issues with code generation, but needs a major rewrite to use it (#75).
• Added new API call to get tasks by ID - that helps to wait and find out how the task completed and what's the image name/id we've got.
• Added more logging to tasks to keep track of their execution.
• Made sure NodeFilter field in Resources will not return null and just empty list as described in spec.
• Small fix to not print timestamps in debug mode if we don't need timestamps.

Related Issue

fixes: #73

Motivation and Context

Since caching in snapshots is a slowpoke, it's the easiest way to get some speed.

How Has This Been Tested?

Manually

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have signed the Adobe Open Source CLA.
• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [x] All new and existing tests passed.