DiracMatrix * AdjointBiSpinor should throw

[AntonReinhard]

Currently, the below code example works:

julia> rand(DiracMatrix) * rand(AdjointBiSpinor)
4-element AdjointBiSpinor with indices SOneTo(4):
  0.05831064669176267 + 1.060921243588353im
   0.4362913483342433 + 1.0602565719746673im
  0.20074057415282742 + 1.4508377616962063im
 -0.44840890838814523 + 1.1177103756306412im

but it should not. It dispatches directly to a StaticArrays implementation of *, so we need to create a specific overload for DiracMatrix * AdjointBiSpinor that throws since it is an illegal operation.