Closes #1384: Parse and interpret See Also section the way NumpyDoc does
The NumpyDoc extension that is developed by the Numpy folks does a lot of extra work interpreting See Also sections. It assumes that the contents of the See Also will always be references to other functions/classes and it tries to deduce what is being referenced.
I've ported their implementation for See Also sections written in the Numpy style. There is NO extra interpretation done for See Also sections that are written using the Google style.