vim-patch:3698fbb: runtime(tsv): include simple syntax plugin

fixes: vim/vim#15271

https://github.com/vim/vim/commit/3698fbbd7c35590dcc4708677d6c38f9009cf9a3

Co-authored-by: Christian Brabandt <cb@256bit.org>

runtime/syntax/tsv.vim

@@ -0,0 +1,12 @@
+" Vim filetype plugin file
+" Language:	Tab separated values (TSV)
+" Last Change:	2024 Jul 16
+" This runtime file is looking for a new maintainer.
+
+if exists('b:current_syntax')
+  finish
+endif
+
+let b:csv_delimiter = '\t'  " enforce tab delimiter
+runtime! syntax/csv.vim
+let b:current_syntax = 'tsv'