BT composite that executes child tasks from first to last until any child returns [code]SUCCESS[/code].
Returns [code]RUNNING[/code] if a task returns [code]RUNNING[/code], and remembers last [code]RUNNING[/code] child. BTSelector will continue where it left off on the next execution tick.
Returns [code]FAILURE[/code] if all tasks return [code]FAILURE[/code].
Returns [code]SUCCESS[/code] if any task returns [code]SUCCESS[/code].