ENH: Add speed-up rotator block for rotating several nodes similarly
ENH: Add speed-up rotator block for rotating several nodes similarly

The transformation block RotateMultiple makes it possible to perform the
same rotation for multiple nodes. Usually one performs the rotation for
one node and the inverse rotation for another node, X->R*X and
C->inv(R)*C. However, using RotateMultiple, it is possible to rotate,
for instance, as X->R*X, C->inv(R)*C, B->inv(R)*B, A->inv(A)*A by using
RotateMultiple(C, B, A).

fivejjs/bayespy,SalemAmeen/bayespy,bayespy/bayespy,jluttine/bayespy