runtime(keymap): Add ukrainian-enhanced keymap

The "Ukrainian enhanced keymap" allows you to type Ukrainian in Vim
using jcuken Windows layout.

Original file is made by Ivan Korneliuk and can be found at
https://github.com/vansha/ukrainian-enhanced.vim. It is being added here
with the permission of the author.

There is another ukrainian layout already in Vim, namely the
keymap\ukrainian-jcuken.vim script by Anatoli Sakhnik. But this one
differs in way it maps numeric keys. It uses values usual for Windows
users.

closes: #16628

Signed-off-by: Vladyslav Rehan <[email protected]>
Signed-off-by: Ivan Korneliuk <[email protected]>
Signed-off-by: Christian Brabandt <[email protected]>

Author: Dolfost

.github/MAINTAINERS

@@ -406,6 +406,7 @@ runtime/keymap/armenian-eastern_utf-8.vim	@blinskey
 runtime/keymap/armenian-western_utf-8.vim	@blinskey
 runtime/keymap/russian-typograph.vim	@RestorerZ
 runtime/keymap/tamil_tscii.vim		@yegappan
+runtime/keymap/ukrainian-enhanced.vim 	@Dolfost
 runtime/lang/menu_en_gb.latin1.vim	@mrdubya
 runtime/lang/menu_ru_ru.cp1251.vim	@RestorerZ
 runtime/lang/menu_ru_ru.koi8-r.vim	@RestorerZ

runtime/keymap/ukrainian-enhanced.vim

@@ -0,0 +1,87 @@
+" Vim Keymap file for ukrainian characters MS Windows enhanced variant.
+" This file is based on russian-jcukenwin.vim by Artem Chuprina <[email protected]>.
+" Keymap has been originally created by Ivan Korneliuk <[email protected]>.
+
+" Maintainer: Vladyslav Rehan <[email protected]>
+" Last Changed: 2025 feb 13
+
+scriptencoding utf-8
+
+let b:keymap_name = "uk"
+
+loadkeymap
+~	’	RIGHT SINGLE QUOTATION MARK
+`	'	APOSTROPHE
+F	А	CYRILLIC CAPITAL LETTER A
+<	Б	CYRILLIC CAPITAL LETTER BE
+D	В	CYRILLIC CAPITAL LETTER VE
+U	Г	CYRILLIC CAPITAL LETTER GHE
+|	Ґ	CYRILLIC CAPITAL LETTER GHE WITH UPTURN
+L	Д	CYRILLIC CAPITAL LETTER DE
+T	Е	CYRILLIC CAPITAL LETTER IE
+:	Ж	CYRILLIC CAPITAL LETTER ZHE
+P	З	CYRILLIC CAPITAL LETTER ZE
+B	И	CYRILLIC CAPITAL LETTER I
+S	І	CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I
+}	Ї	CYRILLIC CAPITAL LETTER YI
+Q	Й	CYRILLIC CAPITAL LETTER SHORT I
+R	К	CYRILLIC CAPITAL LETTER KA
+K	Л	CYRILLIC CAPITAL LETTER EL
+V	М	CYRILLIC CAPITAL LETTER EM
+Y	Н	CYRILLIC CAPITAL LETTER EN
+J	О	CYRILLIC CAPITAL LETTER O
+G	П	CYRILLIC CAPITAL LETTER PE
+H	Р	CYRILLIC CAPITAL LETTER ER
+C	С	CYRILLIC CAPITAL LETTER ES
+N	Т	CYRILLIC CAPITAL LETTER TE
+E	У	CYRILLIC CAPITAL LETTER U
+A	Ф	CYRILLIC CAPITAL LETTER EF
+{	Х	CYRILLIC CAPITAL LETTER HA
+W	Ц	CYRILLIC CAPITAL LETTER TSE
+X	Ч	CYRILLIC CAPITAL LETTER CHE
+I	Ш	CYRILLIC CAPITAL LETTER SHA
+O	Щ	CYRILLIC CAPITAL LETTER SHCHA
+M	Ь	CYRILLIC CAPITAL LETTER SOFT SIGN
+\"	Є	CYRILLIC CAPITAL LETTER UKRAINIAN IE
+>	Ю	CYRILLIC CAPITAL LETTER YU
+Z	Я	CYRILLIC CAPITAL LETTER YA
+f	а	CYRILLIC SMALL LETTER A
+,	б	CYRILLIC SMALL LETTER BE
+d	в	CYRILLIC SMALL LETTER VE
+u	г	CYRILLIC SMALL LETTER GHE
+\\	ґ	CYRILLIC SMALL LETTER GHE WITH UPTURN
+l	д	CYRILLIC SMALL LETTER DE
+t	е	CYRILLIC SMALL LETTER IE
+;	ж	CYRILLIC SMALL LETTER ZHE
+p	з	CYRILLIC SMALL LETTER ZE
+b	и	CYRILLIC SMALL LETTER I
+s	і	CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I
+]	ї	CYRILLIC SMALL LETTER YI
+q	й	CYRILLIC SMALL LETTER SHORT I
+r	к	CYRILLIC SMALL LETTER KA
+k	л	CYRILLIC SMALL LETTER EL
+v	м	CYRILLIC SMALL LETTER EM
+y	н	CYRILLIC SMALL LETTER EN
+j	о	CYRILLIC SMALL LETTER O
+g	п	CYRILLIC SMALL LETTER PE
+h	р	CYRILLIC SMALL LETTER ER
+c	с	CYRILLIC SMALL LETTER ES
+n	т	CYRILLIC SMALL LETTER TE
+e	у	CYRILLIC SMALL LETTER U
+a	ф	CYRILLIC SMALL LETTER EF
+[	х	CYRILLIC SMALL LETTER HA
+w	ц	CYRILLIC SMALL LETTER TSE
+x	ч	CYRILLIC SMALL LETTER CHE
+i	ш	CYRILLIC SMALL LETTER SHA
+o	щ	CYRILLIC SMALL LETTER SHCHA
+m	ь	CYRILLIC SMALL LETTER SOFT SIGN
+'	є	CYRILLIC SMALL LETTER UKRAINIAN IE
+.	ю	CYRILLIC SMALL LETTER YU
+z	я	CYRILLIC SMALL LETTER YA
+@	"	QUOTATION MARK
+#	№	NUMERO SIGN
+$	;	SEMICOLON
+^	:	COLON
+&	?	QUESTION MARK
+/	.	FULL STOP
+?	,	COMMA