Dsmh

Add the option posterior_sampling_method='dsmh' and make it compatible with the Dynare routines.

tests/particle/dsge_base2.mod

@@ -200,7 +200,7 @@ estimation(order=3,filter_algorithm=nlkf,number_of_particles=10000,proposal_appr
 @#endif
 
 @#if DSMH
-  estimation(order=1,posterior_sampling_method='dsmh',posterior_sampler_options=('particles',1000));
+  estimation(order=1,posterior_sampling_method='dsmh',posterior_sampler_options=('particles',10000));
 %  estimation(order=2,posterior_sampling_method='dsmh',posterior_sampler_options=('particles',1000));
 %  estimation(order=3,posterior_sampling_method='dsmh',filter_algorithm=nlkf,proposal_approximation=montecarlo,number_of_particles=500,posterior_sampler_options=('particles',500));
 @#endif