Dynamic containernames in docker-compose.yml

Do you support dynamic container names?

Currently we using docker-compose.yml files with dynamic container names getting set by env variables.

Example shortend `docker-compose.yml` file
```
version: "2.0"
services:
app:
container_name: ${PROJECT_NAME}-app
[........]
```
Can be started via `PROJECT_NAME=testproject docker-compose up`

Looking forward to your answer, thanks a lot!

Tryed
```PROJECT_NAME=testproject lazydocker```
but no container showing up