feat: package docker image for Checkpoint

[antiyro]

Package docker image for Checkpoint to launch Checkpoint instances via docker.
Support checkpoint config.json.

[axelizsak]

Can I take this one.

[axelizsak]

I want to make a PR draft of the Dockerfile, should I do it on ckeckpoint or checkpoint-template?

[bonustrack]

@izcrv Good point, it should be on checkpoint-template