runtime(tsv): include simple syntax plugin

fixes: #15271

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/syntax/tsv.vim b/runtime/syntax/tsv.vim
new file mode 100644
index 0000000..f0dd9f7
--- /dev/null
+++ b/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'