Core_py2matlab: convert data from Python to MATLAB and back.

With a Python distribution and MATLAB installed on the same machine, MATLAB can create Python data structures from within; e.g. myPyStr = py.str('Hello World!'). Python data structures can also be created within MATLAB by the output of a Python package. Python data can be converted back into a MATLAB data type through type-conversion, e.g. char(myPyStr). This function automates the identification of the Python data type and convert it to the appropriate MATLAB data type and vice versa.