extended-preprocessor: starting a C interface (not finished)
added unscented nodes generator
put nodes generators in setup_integration_nodes.m
added stochastic_solvers to homotopic_steps
extended-path: changed homotopy so that integration nodes change
too (only for for case 1)
Merge branch 'master' into ep
Merge branch 'master' into ep
updating extended_path
Merge changes to extended path
make extended path algorithm 1 as a self contained problem usable by dynare_solve