Add foreign functions

main.cpp

@@ -107,6 +107,7 @@ Expr:
 [ ] - Rust like enum where you associate values(other structs) with keys
 [ ] - Compound that zeros values - .{} , Compound that assumes defaults from struct definition - {}
 [ ] - Inject stack traces into the program
+[ ] - Rewrite constants to embed lambda, types, structs etc.? ??? 
 
 @donzo
 [x] - We are parsing wrong here: (t.str=(&string_to_lex.str)[i]);
@@ -148,7 +149,8 @@ Expr:
 #include "base.cpp"
 #include "base_unicode.cpp"
 #include "big_int_c3.cpp"
-#include "new_lex.cpp"
+#include "compiler.h"
+#include "lexer.cpp"
 #include "types.h"
 // #include "big_int.cpp"
 #include "new_ast.cpp"