Added get_languages(), detect_language() functions and test cases for th...

*Added the get_languages() function to get a Python list of the supported language locale codes.
*Added detect_language() function to detect the language of the input text.
*Added test cases for both functions - Test cases pass with no failures.
this test is not a good idea for the proejct in the long run. If microsoft adds or removes a langauge this test will break.

So it would be best to test if an array is returned and also check if a few of the commonly found languages are in the list.