showExecutionSummary method
Implementation
void showExecutionSummary(String env, bool success) {
final pen = success ? (AnsiPen()..green()) : (AnsiPen()..red());
print('\n${pen('--------------------------------------------------')}');
print(pen('Switch to "$env" ${success ? 'SUCCESSFUL' : 'FAILED'}'));
print('${pen('--------------------------------------------------')}\n');
}