1.35.0. Allow any exec_target for addons and custom commands. Closes #356
1.35.0. Allow any exec_target for addons and custom commands. Closes #356

Requires that container that serves as exec_targeet to have volume just like cli mapped to source
```
    volumes:
      # Project root volume
      - project_root:/var/www:rw,nocopy
```

docksal/docksal