Read Particle Properties for Constellations

[FG-TUM]

Feature

Desired behavior

With #99 regular satellites / debris each get individual mass, radius, activityState. Constellation objects are still parsed in the old way via two csv one for positions, one for velocities.

What needs to be done

Option 1

Switch all constellation input over to new format.
Pro: We can use one input function for everything
Con: Might be a lot of work? But should be scriptable...

Option 2

Extend the old format and somehow add the information in another place.
Pro: Probably less invasive.
Con: This can get ugly since we have to support multiple types of input.

How it can be tested

Compare to old simulations