Frame Hierarchical State Machine

Frame HSM

`import sys`

#![generate_frame_event]

fn main {
    var hsm:# = #HierarchicalStateMachine()
    hsm.start()
    hsm.stop()
}

#HierarchicalStateMachine

    -interface-

    start
    stop

    -machine-

    $Begin
        |start|
            -> "start" $Working ^

    $Working => $Default
        |>|
            print("Hello World") ^

    $End
        |>|
            print("End of the World") ^

    $Default
        |stop|
            -> "stop" $End ^


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