some cleanup of unused macros in test files, preparing bootstrap and single header code + scripts

project/gen.bootstrap.cpp

@@ -0,0 +1,14 @@
+#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
+#define GEN_ENFORCE_STRONG_CODE_TYPES
+#define GEN_EXPOSE_BACKEND
+#include "gen.cpp"
+
+using namespace gen;
+
+void gen_main()
+{
+
+
+
+	return 0;
+}