patch 8.2.4420: menu translations are inconsistent

Problem:    Menu translations are inconsistent.
Solution:   Add a Makefile to convert between encodings. (Ada (Haowen) Yu,
            closes #9801)
diff --git a/runtime/lang/menu_uk_ua.cp1251.vim b/runtime/lang/menu_uk_ua.cp1251.vim
index 2e751c8..d672934 100644
--- a/runtime/lang/menu_uk_ua.cp1251.vim
+++ b/runtime/lang/menu_uk_ua.cp1251.vim
@@ -1,6 +1,7 @@
 " Menu Translations:	Ukrainian
 " Maintainer:		Bohdan Vlasyuk <bohdan@vstu.edu.ua>
 " Last Change:		11 Oct 2001
+" Generated from menu_uk_ua.utf-8.vim, DO NOT EDIT
 
 "
 " Please, see readme at htpp://www.vstu.edu.ua/~bohdan/vim before any