Created function insertIntoGridPosition and test
Test to insert into the grid and the function takes a variable
Test insert for negative numbers
Test insert for too big numbers
Created test to see if a field is marked and marked a field on insert
insert into to grid takes a char and a test for inserting a char into node
Refactoring for insertIntoGridPosition
Test if game is tied and game is not over, added a function gameConclusion
Added tests to test if game is won horizontal and modified function gameConclusion
Added test to see if game is won vertical and modified the function gameConclusion()
Test for diagonal top left to bottom right and modified gameConclusion
Test for diagonal top right to bottom left and modified gameConclusion
Did some refactoring gameConclusion()
Refactoring for gameConclusion
And some more refactoring for gameConclusion()