Initial reorg.

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

crates/misc/py/examples/gcd/gcd.rs

@@ -0,0 +1,19 @@
+
+#[inline(never)]
+#[no_mangle]
+pub extern fn gcd(m_: u32, n_: u32) -> u32
+{
+        let mut m = m_;
+        let mut n = n_;
+        while m > 0 {
+                let tmp = m;
+                m = n % m;
+                n = tmp;
+        }       
+        return n;
+}
+
+#[no_mangle]
+pub extern fn test() -> u32 {
+  gcd(24, 9)
+}