Proceeding with second order method.
Optimized main cycle of improvement.
Temporal results.
Implemented some new suff. diff for f0_u is corrrecred.
Krotov's function's second order.
Implementing second order paropt process. Going generalize.
Arraging all differentials in dictionaries.
More assimilation of the differentials.
Psi in krotov's function is now taken from Psi evaluation.
Generalized calculation of functions in frotov's method.