Todo

In approximate order of importance:

1. Provide examples of quantum walks utilising the GKSL class.
2. Create an environment file for Anaconda.
3. Implement parallel-io operation using the Fortran HDF5 interface to remove the dependency on H5Py.
4. Implement the walk class and subclasses LQSW, GQSW and GKSL in Fortran to make possible python indepedant walk simulation.
5. Provide comprehensive documentation for the Fortran subroutines, compilable via Doxygen.
6. Implement dense BLAS operations to increase the scope of efficient walk simulation to dense systems.