Windows DPAPI function issue

[josephgrigg]

Tested the program on another computer running Windows 10. Issue did not occur on three other computers running Windows 10.

windll.crypt32.CryptUnprotectData failed to decrypt the saved passwords in the xml files properly. This resulted in a 'data_pickle.p' not found error on start up.

Possible temporary fix: Run a unit test on windows_cryptography.py > If unit test fails, default to the slower command prompt parsing method of gathering data.