Update mod.ts

Author: Mqxx

src/format/mod.ts

@@ -1,7 +1,13 @@
 import formatString from "./format_string.ts";
 import truncate from "./truncate.ts";
+import trimCharactersStart from "./trim_characters_start.ts";
+import trimCharactersEnd from "./trim_characters_end.ts";
+import trimCharacters from "./trim_characters.ts";
 
 export { 
     formatString,
-    truncate
+    truncate,
+    trimCharactersStart,
+    trimCharactersEnd,
+    trimCharacters
 }