Added TestSuite and TestCase models - <Bala>
Added functions to read and write array of line from and to file - <Bala>
Added NewtonSoft.Json dll to the project - <Bala>
Fixed a bug to get file name without extension - <Bala>
Made changes to the tester to use a generic tester to test all problems by reading input from JSON - <Bala>
Removed uploaded files from the repository - <Bala>