feat(cmedb): add print_help function to assist in printing help commands

cme/cmedb.py

@@ -16,6 +16,7 @@ from sqlalchemy.ext.asyncio import create_async_engine
 from sqlalchemy.exc import SAWarning
 import csv
 import warnings
+from textwrap import dedent
 
 # The following disables the InsecureRequests warning and the 'Starting new HTTPS connection' log message
 from requests.packages.urllib3.exceptions import InsecureRequestWarning
@@ -84,6 +85,10 @@ def complete_export(text, line):
     return [s[offs:] for s in commands if s.startswith(mline)]
 
 
+def print_help(help_string):
+    print(dedent(help_string))
+
+
 class DatabaseNavigator(cmd.Cmd):
     def __init__(self, main_menu, database, proto):
         cmd.Cmd.__init__(self)