func GetCallingScriptHash() []byte {
	return nil
}
GetCallingScriptHash returns the script hash of the contract that started
the execution of the current script.
package engine
import "github.com/CityOfZion/neo-storm/interop/transaction"
func GetScriptContainer() transaction.Transaction {
	return transaction.Transaction{}
}
func GetExecutingScriptHash() []byte {
	return nil
}