Track: runnc container create

[lumjjb]

List of tasks to track for container create in branch: https://github.com/nabla-containers/runnc/tree/runnc-cli-pass1

CREATE

• [x] libcontainer/factory_nabla.go-func New(root string, options ...func(*NablaFactory) error) (Factory, error)
• [x] libcontainer/factory_nabla.go-func (l NablaFactory) Create(id string, config configs.Config) (Container, error)
• [x] libcontainer/factory_nabla.go-func (l *NablaFactory) Load(id string) (Container, error)
• [x] libcontainer/factory_nabla.go-func (l *NablaFactory) StartInitialization() error
• [x] libcontainer/configs/spec.go-func ParseSpec(s specs.Spec) (Config, error)
• [x] runnc-cli/util_nabla.go-func startContainer(context cli.Context, spec specs.Spec, create bool) (int, error)
• [x] runnc-cli/util_nabla.go-func createContainer(context cli.Context, id string, spec specs.Spec) (libcontainer.Container, error)
• [x] runnc-cli/util_nabla.go-func validateProcessSpec(spec *specs.Process) error

[lumjjb]

Done in https://github.com/nabla-containers/runnc/pull/32