Updated Files
Updated Documentation of Settings

Updated Documentation of Settings
Added Sudoku TXT reader and unit test classes

TestSettings.py
TestSudokuTXTReader.py
SudokuTXTReader.py
Required Files to test SudokuTXTReader
Updates Done
Added TestLevel.py

Added TestLevel.py and updated TestSudokuTXTReader.py
Merge pull request #19 from AlvaroAvila/master

 SudokuCSVReader.py file