Implement spins for the current BBH model correctly
Currently the spins are implemented as six floats: spin11=0, spin12=0, spin13=0, spin21=0, spin22=0, spin23=0 We may reconsider the naming convention and the coordinate system.
Currently the spins are implemented as six floats: spin11=0, spin12=0, spin13=0, spin21=0, spin22=0, spin23=0 We may reconsider the naming convention and the coordinate system.