Add support for container data type transferring

[HaronK]

Add support containers transferring between Lua and Rust.
Idea:

1. For the copyable types (in Lua context, i.e. integers; Vec3 won't work) generate wrappers with element indexing ([i]).
2. For the cloneable types generate wrappers with get_copy/set methods.

Update proc macro to automatically generate vector wrappers for custom types and separate macro for copyable ones (integers, floats, etc.)