Lib: Include fixes to better split lib from nest

#ifndef _BIRD_BIRDLIB_H_

#define _BIRD_BIRDLIB_H_

#include "sysdep/config.h"

#include "lib/alloca.h"

/* Ugly structure offset handling macros */

#define _BIRD_LISTS_C_

#include "nest/bird.h"

#include "lib/lists.h"

/**

#ifndef _BIRD_LISTS_H_

#define _BIRD_LISTS_H_

#include "lib/birdlib.h"

/*

 * I admit the list structure is very tricky and also somewhat awkward,

 * but it's both efficient and easy to manipulate once one understands the

#include <stdlib.h>

#include <stdint.h>

#include "nest/bird.h"

#include "lib/birdlib.h"

#include "lib/resource.h"

#include "lib/string.h"

#ifndef _BIRD_STRING_H_

#define _BIRD_STRING_H_

#include "lib/birdlib.h"

#include "lib/resource.h"

#include <stdarg.h>

#include <string.h>

#include <strings.h>

#include "lib/resource.h"

int bsprintf(char *str, const char *fmt, ...);

int bvsprintf(char *str, const char *fmt, va_list args);