Initial reorg.

This is largely the same as #305, but updated for the current tree.

crates/misc/py/src/module.rs

@@ -0,0 +1,12 @@
+//! WebAssembly Module API object.
+
+extern crate alloc;
+
+use pyo3::prelude::*;
+
+use alloc::rc::Rc;
+
+#[pyclass]
+pub struct Module {
+    pub module: Rc<wasmtime_environ::Module>,
+}