Bring in the mockination work and Truss from old.

It's all a mess -- not in the new unified form and namespace.
I need to do a big cleanup pass.

Truss/function.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <Alepha/Alepha.h>
+
+#include <functional>
+
+
+namespace Alepha::Hydrogen::Truss
+{
+	using ::std::function;
+}
+