patch 8.2.4463: completion only uses strict matching

Problem:    Completion only uses strict matching.
Solution:   Add the "fuzzy" item for 'wildoptions'. (Yegappan Lakshmanan,
            closes #9803)
diff --git a/src/proto/search.pro b/src/proto/search.pro
index 27c609e..bdd9213 100644
--- a/src/proto/search.pro
+++ b/src/proto/search.pro
@@ -40,4 +40,7 @@
 int fuzzy_match(char_u *str, char_u *pat_arg, int matchseq, int *outScore, int_u *matches, int maxMatches);
 void f_matchfuzzy(typval_T *argvars, typval_T *rettv);
 void f_matchfuzzypos(typval_T *argvars, typval_T *rettv);
+int fuzzy_match_str(char_u *str, char_u *pat);
+int fuzzymatches_to_strmatches(fuzmatch_str_T *fuzmatch, char_u ***matches, int	count, int funcsort);
+void fuzmatch_str_free(fuzmatch_str_T *fuzmatch, int count);
 /* vim: set ft=c : */