Feature Request: add support for external registries as sources and destinations

[Parker Scanlon]

Depends on #7 and #8. #9 is an example. Other examples are ECR and Artifactory.

• External ECR repositories
• DockerHub
• Aritfactory

Add to this list and make a new issue if there are other registries you would like to be supported.

[Vivek Ranjan]

I am curious how this compares to https://github.com/cdklabs/cdk-ecr-deployment ?
Can move to another issue if its off-topic, lmk.

[Richardmbs12]

cdk-ecr-deployment doesnt support java :(