I decided to create my own Matrix type

Implementation of operator overload <<.

Compute_with calculates the width between matrix elements

The linalg namespace contains the Matrix, MatrixException and Proxy classes.

Inherited from std::exception

Exceptions:

1. IncorrectDimensions - Incorrect dimenssions
2. OutOfRangeException - Out of range exception

###Proxy Proxy class created to implement the operator[][]

Some tests to check