initial condition decomposition

it would be useful to add interface for the following options:

nodisplay 
graph_format
fig_name

Moreover, the preprocessor should give a lhs arg oo_ when translating the command, i.e.:

oo_ = initial_condition_decomposition(M_,oo_,options_,var_list_,bayestopt_,estim_params_);

so not really new options, but just allow those in the pre-processor. many thanks!