[StringCalc] Create new files
[StringCalc] Create New Files
[StringCalc0406] Create first test with nil and empty string
[StringCalc0406] First Test, Red
[StringCalc0406] Test again, Green
[StringCalc0406] Refactor
[StringCalc0406] Second test with one numbering string - RED
[StringCalc0406] Green
[StringCalc0406] Refactor
[StringCalc0406] Test with two numbers in string, separated by , character
[StringCalc0406] Refactor
[StringCalc0406] Test with many numbers in string, separated by , character
[StringCalc0406] End now, out of time