Test added, it tests consistency for the reaction N2 + O <=> NO + N
 - kf, kbwd, Keq, rate_fwd, rate_bwd and net_rate are calculated on hand,
 - then net_rate calculated with Antioch
 - rate_fwd calculated by trigging the boolean
then the checks are
 - net rate comparison
 - forward rate comparison
 - (net_rate - forward) v/s rate_bwd comparison