Add documentation for OdraErrors

[kpob]

A user sends a deploy and then examines the status. If the result is Failure, an error code is returned like: "error_message": "User error: 32880".

Odra gives the users some error space, but some are reserved for internal erros. In this case, error 32880 is an internal error 112.

In Odra documentation, there should be a section that translates API errors into internal Odra errors