AWS: Dedicated hosts management

[sparshev]

This change enables dedicated hosts management on AWS and a couple of other useful things

Description

• AWS: Integrated one-node dedicated host pool manager. It can spin-up the hosts when needed and will monitor the usage to release the host when not needed anymore. Now label definition could have pool option which will utilize the pre-defined dedicated pool to allocate or reuse the allocated host.

• AWS: Updated SDK dependency to the latest versions

• AWS: Switched to create objects instead of references and utilized more aws functions to convert to/from aws types

• AWS: Added retries for the API communication, due to the issues with utilizing Host in Allocation after it becomes Available: https://docs.aws.amazon.com/ec2/latest/devguide/eventual-consistency.html

• "Driver: AWS" wiki page was updated

Related Issue

60

Motivation and Context

It's really needed

How Has This Been Tested?

Manual & Automatic tests

Types of changes

• [x] 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.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.