[ktd] [Feature] Translate resource requirements to docker-compose

[gchazot]

kubetools.yml can specify k8s resource spcifications for docker containers (e.g. container.resources.requests.memory).
docker-compose also supports these limits:

• version 2: deprecated but still used in version 2 which is currently used by kubetools
• version 3: spec for docker-compose 3.x

There is a case for (optionally?) translating those limits into the development environment:

• some issues only show up when the process in a container becomes unable to allocate more memory
• it is very hard to monitor memory usage of a container, especially when that usage is very transient