[new_pymtl] add connect_dict to Model
[new_pymtl] add connect_dict to Model

cfelton/pymtl,cornell-brg/pymtl,jjffryan/pymtl,cfelton/pymtl,cfelton/pymtl,Abhinav117/pymtl,jck/pymtl,12yujim/pymtl,tj93/pymtl,cornell-brg/pymtl,jck/pymtl,12yujim/pymtl,cornell-brg/pymtl,tj93/pymtl,Glyfina-Fernando/pymtl,Glyfina-Fernando/pymtl,jjffryan/pymtl,Abhinav117/pymtl,tj93/pymtl,12yujim/pymtl,jjffryan/pymtl,jck/pymtl,Abhinav117/pymtl,Abhinav117/pymtl,Glyfina-Fernando/pymtl