Fixed an issue with the animation path when cameras, particle systems, ribbons, projections, warps, forces, rigid bodies get imported while there are already some.
Ensure with a new UniqueNameFinder class that imported materials get unused and unique names.
Ensure that imported particle systems get unused and unique names.
Derivate ribbon, projection, warp , force, rigied body and light names from the unique bone names to make them (in most cases) unique.
Use unique bone names as name for cameras.