fix intend: Operator\MemoryOperator
add Operator::transform.backquote
add Operator::transform.expand
add Operator::trnasform.expandlist
fix Evaluator\LambdaEvaluator::bindParamToScope => fix param expanded twice issue
fix Evaluator\Evaluator::car => fix can not handle Symbol issue
fix Evaluator\Evaluator::cdr => fix can not handle Symbol issue