create section layout without copying chunk data and perform chunk data

copy in parallel given layout

src/linker/lnk_debug_info.h

@@ -316,6 +316,7 @@ typedef struct
   LNK_Section               **sect_id_map;
   PDB_DbiModule             **mod_arr;
   PDB_DbiSectionContribList  *sc_list;
+  String8                     image_data;
 } LNK_PushDbiSecContribTaskData;
 
 typedef struct
@@ -581,6 +582,7 @@ internal void lnk_build_pdb_public_symbols(TP_Context            *tp,
 
 internal String8List lnk_build_pdb(TP_Context               *tp,
                                    TP_Arena                 *tp_arena,
+                                   String8                   image_data,
                                    Guid                      guid,
                                    COFF_MachineType          machine,
                                    COFF_TimeStamp            time_stamp,