Creating a map from Rust-land

[darmie]

I don't know if this was intentional, but on the registered-based branch, creating a map was possible from ffi.

How do I do this while using the master branch? The new_map function is only available within goscript crate.

goscript/vm/src/value.rs

Line 1492 in 04d1cb0

pub(crate) fn new_map(gcc: &GcContainer) -> GosValue {

How do I convert this MapObj to a GosValue?

[darmie]

I have opened a PR #18