compositions components

the folder ./compositions/components contains a single folder for large scale assemblies of units and compositions that represent one specific version of one of the 4 primary components of any given model:

1. groundStations - compositions that represent the dynamics of a ground station
2. liftingBodies - compositions that represent the dynamics of a lifting body or vehicle
3. tethers - compositions that represent the dynamics of a tether, or tethers
4. winches - compositions that represent the dynamics of a winch, or collection of winches