it would be nice if create_module could take a dict of submodules

[Jaymon]

I'd like to do something like:

m = testdata.create_module({
    "foo": ""
    "foo.bar": "",
    "che": ""
})

And it would create the module with whatever name, with submodules: .foo, .foo.bar, and .che and m would be a ModulePath instance so print(m) would print whatever name of the module.