fix razor composition, add ssinc_mdr00 and ssinc_mdr20

- razor (after relaxing cuts for compositions, now non-zero tot_weight
  for both 1D and 2D)
- ssinc_mdr00: same sign inclusive selection
- ssinc_mdr20: as above, but with additional m^Delta_R>20GeV. Only ok
  with 1D parametrization