Updating Users is Broken

[genio]

When updating a user, it fails because the Id field is being stripped here:
https://github.com/Trifoia/litmos-sdk/blob/master/lib/endpoints/users.js#L105-L107

According to the API docs, the user Id in the URL and the user Id in the XML payload must match. Since it's being stripped from the payload, we can't possibly update a user's information.

You can see where that stripping happens here:
https://github.com/Trifoia/litmos-sdk/blob/master/lib/generators/generate-user.js#L36

const res = await litmos.api.users.id(user.Id).put(user);

The above will fail because:

statusCode: 404,
statusMessage: 'Please check the userid in the xml/json and the userid in the URL. They must match.',