Add matrix operations

[SammyUrfen]

I would like to add a file where one can do all the matrix operations

• addition, subtraction, scalar multiplication, matrix multiplication, transpose of a matrix, rotating the matrix (90deg, 180deg or 270 deg) and inverse - cofactor - adjoint of a square matrix.

i would also like to make changes to the sorting file to not only sort the array but also print all the steps for sorting the array (in the terminal). Also adding insertion sort and selection sort.

Also change the star pattern file to include not only print pyramid but several other patterns - (diamond, reverse diamond, inverse pyramid, etc and more if you need)

I am a college student and i definitely feel like adding these would help people and make the project better.
This would be my first project to work on so if you could assign me this role I will be thankful

[SammyUrfen]

@DhanushNehru Could you assign this to me under the label hacktoberfest?