Implement BlInitializeBootMenuList()

xtldr2/includes/bootman.h

@@ -91,6 +91,12 @@ BlGetVolumeDevicePath(IN PCHAR SystemPath,
                       OUT PCHAR *ArcName,
                       OUT PCHAR *Path);
 
+XTCDECL
+VOID
+BlInitializeBootMenuList(OUT PXTBL_BOOTMENU_ITEM MenuEntries,
+                         OUT PULONG EntriesCount,
+                         OUT PULONG DefaultId);
+
 XTCDECL
 EFI_STATUS
 BlMemoryAllocatePages(IN UINT64 Pages,