Add newTable method at Lua interface

[dayo05]

This PR simply adds newTable() method(with default invocation) to Lua interface.

The newTable seems exists on native lua code and highly used on beginner-level code instead its equivalent: createTable(0, 0).

Also, because the LuaNative.newTable exists, its good to add it into interface too.

I just add it via default method of interface because I use github edit page to modify this but if you want then I'll change it to use method inside LuaNative.