Implement NEB and Dimer algorithms

As they are in ASE.

1. https://wiki.fysik.dtu.dk/ase/tutorials/neb/diffusion.html
2. https://wiki.fysik.dtu.dk/ase/tutorials/dissociation.html
3. https://wiki.fysik.dtu.dk/ase/tutorials/neb/idpp.html
4. https://wiki.fysik.dtu.dk/ase/tutorials/selfdiffusion/al110.html
5. https://wiki.portal.chalmers.se/chemicalphysics/pmwiki.php/Theory/VASP-and-NEB-ASE