add multi mock config file support

[XiaoboHe]

Improve the "-r --rules" arg, and add multi mock config file support

# if only one mock config file
turq -r $config_file_path

# if many mock config files
turq -r $config_file_dir

please refer to the issue @#11

[vfaronov]

Thank you for your effort. However, this needs more work.

When there’s an error in the rules code (during parsing or execution), Turq reports the error’s line number. With your change, that number becomes useless, because it’s now the line number in some concatenation of multiple files.

To deal with this properly, you would need to change how Turq parses and executes rules code and reports errors. And, as discussed in #11, I’m not sure this is a good idea for Turq.

There are also a few smaller problems with your code (missing paths are silently ignored; no tests; no docs).

If you like, feel free to try and improve this, but I can’t promise to merge this anytime soon.