Return the children of `m` and its direct parameters not registered in modules.

def children_and_parameters(m:nn.Module):
    "Return the children of `m` and its direct parameters not registered in modules."
    children = list(m.children())
    children_p = sum([[id(p) for p in c.parameters()] for c in m.children()],[])
    for p in m.parameters():
        if id(p) not in children_p: children.append(ParameterModule(p))
    return children