Switched to standard C++ header files for consistency with other source files

#include <iostream>

#include <cassert>

#include <math.h>

#include <cmath>

#include "lal_dipole_long_lj.h"

#include <iostream>

#include <cassert>

#include <math.h>

#include <cmath>

#include "lal_lj_expand_coul_long.h"

   Contributing author: Trung Dac Nguyen (Northwestern)

------------------------------------------------------------------------- */

#include <math.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <cmath>

#include <cstdio>

#include <cstdlib>

#include <cstring>

#include "pair_lj_cut_dipole_long_gpu.h"

#include "atom.h"

#include "atom_vec.h"

   Contributing author: Trung Nguyen (Northwestern)

------------------------------------------------------------------------- */

#include <math.h>

#include <stdio.h>

#include <stdlib.h>

#include <cmath>

#include <cstdio>

#include <cstdlib>

#include <cstring>

#include "pair_lj_expand_coul_long_gpu.h"

#include "atom.h"

#include "atom_vec.h"

#include "universe.h"

#include "update.h"

#include "domain.h"

#include <string.h>

#include "kspace.h"

#include "gpu_extra.h"