Function output_execution_plan_full 

pub fn output_execution_plan_full(
    pre_commands: Vec<PlannedCommand>,
    commands: Vec<PlannedCommand>,
    post_commands: Vec<PlannedCommand>,
    parallel: Option<bool>,
    max_parallel: Option<usize>,
    spawn_stagger_ms: Option<u64>,
)

Serialize and print a full execution plan with pre/post commands to stdout.