frt-chord: restructured and added next hop implementation
frt-chord: restructured and added next hop implementation

The current implementation is far from useable. Dialyzer error messages indicate a type
problem.
seyyed/scalaris,seyyed/scalaris,tectronics/scalaris,tectronics/scalaris,tectronics/scalaris,tectronics/scalaris,tectronics/scalaris,seyyed/scalaris,seyyed/scalaris,digshock/scalaris,digshock/scalaris,seyyed/scalaris,tectronics/scalaris,tectronics/scalaris,seyyed/scalaris,digshock/scalaris,digshock/scalaris,digshock/scalaris,seyyed/scalaris,digshock/scalaris,digshock/scalaris