patch 9.1.0754: fixed order of items in insert-mode completion menu

Problem:  fixed order of items in insert-mode completion menu
Solution: Introduce the 'completeitemalign' option with default
          value "abbr,kind,menu" (glepnir).

Adding an new option `completeitemalign` abbr is `cia` to custom
the complete-item order in popupmenu.

closes: #14006
closes: #15760

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/insexpand.c b/src/insexpand.c
index 63bf070..a774a33 100644
--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -88,15 +88,6 @@
 #endif
 
 /*
- * Array indexes used for cp_text[].
- */
-#define CPT_ABBR	0	// "abbr"
-#define CPT_MENU	1	// "menu"
-#define CPT_KIND	2	// "kind"
-#define CPT_INFO	3	// "info"
-#define CPT_COUNT	4	// Number of entries
-
-/*
  * Structure used to store one match for insert completion.
  */
 typedef struct compl_S compl_T;
@@ -1338,8 +1329,7 @@
 	    }
 
 	    if (compl->cp_text[CPT_ABBR] != NULL)
-		compl_match_array[i].pum_text =
-		    compl->cp_text[CPT_ABBR];
+		compl_match_array[i].pum_text = compl->cp_text[CPT_ABBR];
 	    else
 		compl_match_array[i].pum_text = compl->cp_str;
 	    compl_match_array[i].pum_kind = compl->cp_text[CPT_KIND];