vim-patch:4ce1cb5: runtime(graphql): contribute vim-graphql to Vim core

Contribute the core of my vim-graphql project (ftplugin, indent, syntax)
to the Vim project. This replaces the basic ftplugin support that was
already in the runtime with a more complete set of filetype settings. I
can assume maintainership for all of these files.

I'll continue to maintain the higher-level embedded filetype support
separately (in vim-graphql) for now, because it's fairly complex, but we
can consider integrating that code directly into vim later.

runtime files use the MIT license.

closes: vim/vim#16273

4ce1cb5bf1

Co-authored-by: Jon Parise <jon@indelible.org>

runtime/ftplugin/graphql.vim

@@ -1,13 +1,22 @@
 " Vim filetype plugin
 " Language:	graphql
-" Maintainer:	Riley Bruins <ribru17@gmail.com>
-" Last Change:	2024 May 18
+" Maintainer:	Jon Parise <jon@indelible.org>
+" Filenames:	*.graphql *.graphqls *.gql
+" URL:		https://github.com/jparise/vim-graphql
+" License:	MIT <https://opensource.org/license/mit>
+" Last Change:	2024 Dec 21
 
 if exists('b:did_ftplugin')
   finish
 endif
 let b:did_ftplugin = 1
 
-setl comments=:# commentstring=#\ %s
+setlocal comments=:#
+setlocal commentstring=#\ %s
+setlocal formatoptions-=t
+setlocal iskeyword+=$,@-@
+setlocal softtabstop=2
+setlocal shiftwidth=2
+setlocal expandtab
 
-let b:undo_ftplugin = 'setl com< cms<'
+let b:undo_ftplugin = 'setlocal com< cms< fo< isk< sts< sw< et<'