Declared variables in hr_solver2d.f90. Implemented periodic boundary conditions
Finished Roe Solver in both x and y directions
Finished calc_chars subroutine for solving the riemmann problem on all grid cells
Wrote code for updating the flux. Did not work.
Fixed call to calc_char
Fixed the roe_solve_x subroutine.

I had mixed up the ordering of various eignevalues and eigenvectors.
I still haven't tested that it works in the y direction
roe_solve_y is now working. Dam break in vertical direction works.