listShowNeat method
Method for informative list-printing.
Implementation
void listShowNeat(List _l, String _lName, String caller) {
String l = _l.length.toString();
print('\n :L: $_lName --> caller:: $caller length:: $l -->');
_l.forEach(print);
print(' -- - - - - - done - - - - - - - - \n');
}