cleanup code generation, add throw/catch, copy_term, var, atomic, not, false builtins

src/prolog/mod.rs

@@ -8,8 +8,12 @@ pub mod heapview;
 pub mod indexing;
 pub mod io;
 pub mod iterators;
+#[macro_use]
+pub mod macros;
 pub mod naive_allocator;
 pub mod prolog_parser;
 pub mod machine;
 pub mod or_stack;
 pub mod targets;
+
+pub mod builtins;