Add a training template with an EfficientNet embedding

[david-thrower]

Kind of issue: Feature-request-or-enhancement

Expected behavior
A clear description of what you expected to happen.

We want to augment the performance of the image classification and other image intelligence models.

Execution environment: all

Suggested Labels (If you don't know, that's ok): kind/enhancement

[david-thrower]

Already completed. We need to put in "experimental", since this is too large for our quota of computational resourced for Github actions CICD tests.