runtime(scheme): update runtime files

Add TODO highlighting, disable text-wrapping, add "define-library" to
lispwords on CHICKEN. Update MAINTAINERS.

closes: #15063

Signed-off-by: Evan Hanson <evhan@foldling.org>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/ftplugin/chicken.vim b/runtime/ftplugin/chicken.vim
index 84d45ba..b12b264 100644
--- a/runtime/ftplugin/chicken.vim
+++ b/runtime/ftplugin/chicken.vim
@@ -1,12 +1,12 @@
 " CHICKEN-specific Vim customizations
-" Last Change: 2018-03-05
-" Author: Evan Hanson <evhan@foldling.org>
-" Maintainer: Evan Hanson <evhan@foldling.org>
-" Repository: https://git.foldling.org/vim-scheme.git
-" URL: https://foldling.org/vim/ftplugin/chicken.vim
-" Notes: These are supplemental settings, to be loaded after the core
-" Scheme ftplugin file (ftplugin/scheme.vim). Enable it by setting
-" b:is_chicken=1 and filetype=scheme.
+" Last Change: 2024 Jun 21
+" Author:      Evan Hanson <evhan@foldling.org>
+" Maintainer:  Evan Hanson <evhan@foldling.org>
+" Repository:  https://git.foldling.org/vim-scheme.git
+" URL:         https://foldling.org/vim/ftplugin/chicken.vim
+" Notes:       These are supplemental settings, to be loaded after the
+"              core Scheme ftplugin file (ftplugin/scheme.vim). Enable
+"              it by setting b:is_chicken=1 and filetype=scheme.
 
 if !exists('b:did_scheme_ftplugin')
   finish