Please provide a "general" get function

[zmic]

Please add a public "get" method in case I need some API access point that's not provided by the client class. All this function needs to do is paste the argument to base_url and send the request.

So you would use it like this: item = client.get("/me/drive/root:/path/to/file", params=None)

And same for post and delete. Thanks for this module!