Impelementing functions in Matlab Class and in CMatrix Class

[DavidIbrahim]

make a new branch from the last updated commit on phase2 branch not (origin/master)

1. string Matlab::getInstructionWithoutConcatenation(string instruction)
2. CMatrix CMatrix::verticalConcatenation(CMatrix m1,CMatrix m2)
3. CMatrix CMatrix::horizontalConcatenation(CMatrix m1,CMatrix m2)
   Hint : for 2 and 3 check setSubMatrix function

Deadline Thursday 11 : 59

[Rameez-Barakat]

task done waiting for testing