rrapdg tool does not work outside of project directory

[ConnectedSystems]

As in title.

Caused by the use of paths relative to the package directory.

rrap-dg/rrap_dg/cyclones/cyclones.py

Line 6 in be60a4c

jl.seval('include("rrap_dg/cyclones/datacube_generator.jl")')

Relative paths are in use by both cyclone and cluster domain modules.

This is an issue as it means nothing will work if someone simply pip installs the tool (unless they navigate to the site-packages directory or something.