Add functions to use tvguide within a Python script

[jradavenport]

Since the tvguide and tvguide_csv functions can't take arguments from within a Python script, I created stupid new versions of them.

Or if this is not an appealing solution, perhaps those main methods could be reworked to alternatively accept inputs directly w/o argparse?

[mrtommyb]

This looks like a good idea. Thanks. I might adjust them a little so that instead of printing things they return the information that would be printed. That way you can print them inside a script if that's desired

[mrtommyb]

However, i don't see any reason not to merge now and change the functionality later