Several improvements
Several improvements

Changed to use ibm_db_dbi instead of ibm_db.
Improved performance by removing iteration of rows.
Shortened output column names to shorter pseudo-descriptions to improve
display of tabular output.

Club-Seiden/-ibmi_netstat_py,Club-Seiden/python-for-IBM-i-examples,ThePrez/-ibmi_netstat_py,Club-Seiden/python-for-IBM-i-examples,ThePrez/python-for-IBM-i-examples,ThePrez/python-for-IBM-i-examples