Redesign the library and related components.

This step is needed, since the current design is quite chaotic
and it would not be possible to finish the application.

There's still a lot to be done.

After this step, it's time to implement the rest of LdLua.

src/ld-lua.c

@@ -15,9 +15,10 @@
 
 #include "config.h"
 
-#include "ld-library.h"
-#include "ld-symbol-category.h"
 #include "ld-symbol.h"
+#include "ld-symbol-category.h"
+#include "ld-library.h"
+
 #include "ld-lua.h"