Support CUDA C++ Class Template Binding Generation in Numbast

[isVoid]

We would like to support class template generation in Numbast. Preferably a declaration that looks like:

template <typename T>
class Foo {
    void bar();
};

With Numbast, user can automatically get bindings that looks like:

intFoo = Foo(T=np.int32)

@cuda.jit(link=...)
def kernel():
    intFoo_inst = intFoo()
    intFoo_inst.bar()

Thanks to @gevtushenko's work to provide this UX inspiration.