Initial draft of stack-based machine for JS.

The idea I have is that I'll translate/compile JavaScript
into a rudimentary Forth like language.  This sketch forms
the basis for that language's engine.

js4g/Dillo/Dillo.h

@@ -0,0 +1,5 @@
+static_assert( __cplusplus >= 2023'02 );
+
+#pragma once
+
+namespace Dillo::inline Hydrogen {}