Example of packaging app using cx_Freeze

See https://anthony-tuininga.github.io/cx_Freeze/

See also:
- http://stackoverflow.com/questions/17389215/cefpython3-pyside-and-cx-freeze-cant-get-exe-working
- http://stackoverflow.com/questions/27171646/cefpython-script-compiled-to-exe-fails-to-run