Model Optimizer Lamda Function

[larsll]

Issue #, if available: #10

Description of changes:
The change introduces a lambda function that can run the Tensorflow to OpenVINO optimizer in the cloud.

The PR contains parts of functionality copied in from https://github.com/aws-deepracer/aws-deepracer-model-optimizer-pkg and https://github.com/aws-deepracer/aws-deepracer-systems-pkg, which provides the functionality that is to be replicated.

Functionality:

• New Lambda function, based on a container with OpenVINO installed will trigger once the lambda that uploads a model into the final S3 bucket is completed.
• The optimization files (model.bin, model.xml and model.mapping) are added to the overall tar.gz file. It is uploaded into the same location in S3.
• Introduces a new state "OPTIMIZED"
• S3 bucket versioning turned on to be able to debug any issues.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[larsll]

@davidfsmith @StevenAskwith - this should now be ready for review.

[davidfsmith]

Thanks for submitting, will take a look and get back to you.

[davidfsmith]

All good, merged in and thanks for your contributions.