#70 Parameters to tweak orbital characteristics

[klassiek]

I'd like to request the ability to set some parameters to tweak the orbital characteristics at run time for demonstration purposes. For instance, a multiplier between 0 and infinity to exaggerate the scale of the planets; another to exaggerate the eccentricity of the orbits; another to exaggerate the inclination of orbits; and so on.

The purpose would be for highlighting the differences in these properties between the various bodies.