Remove options for babelize generate command

[mcflugen]

This pull requests simplifies the babelize generate command by removing all command line options and no longer prompting a user for input. Instead, it just prints a sample babelize config file for a user to edit. The options and prompts added a lot of extra code for little benefit.

[mcflugen]

What do you think of this @mdpiper? Are you ok with just printing out a sample config file that someone can then edit? It seemed like being able to control the contents of the config file through the command line was overkill.

[mdpiper]

I think it's a really good idea. All the command-line options made it a bit cumbersome. Frankly, I've just been editing old (possibly out of date) babel.toml files, so this would be an improvement for me.

[mcflugen]

Thanks @mdpiper. I've also renamed the command from babelize generate to babelize sample-config as that seems more descriptive of what it does.