Continue writing WENO 5 solver for Euler system.
Add Sod problem to test WENO 5 solver.
Refactor: rename src folder to wenoeuler1d folder.
Refactor: create package weno5solver.
Convert wenoeuler1d folder to a package.
Convert wenoeuler1d/sodproblem in a package.
Fix numerous problems with Riemann Solver.
Fix errors in calculations of the solution for right rarefaction case.
Improve code readability of Riemann Solver.
Simplify conditionals syntax and fix comment lines length.
Add tests for Riemann solver.
Delete old Riemann solver tests file.
Fix errors and extract interpolation into its own class.
Redo Sod problem test such that it compares results with analytic solution.
Refactor: move Sod modified problem test script into tests folder.
Refactor: delete package sodproblem as it is not needed.
Refactor: rename modules to conform with PEP8 conventions.
Add script for testing convergence of WENO5 on Sod modified problem.
Change convergence script.
Extract CFL_NUMBER constant.