Restore accidentally deleted version.texi file
diff --git a/gprofng/doc/version.texi b/gprofng/doc/version.texi
new file mode 100644
index 0000000..d282161
--- /dev/null
+++ b/gprofng/doc/version.texi
@@ -0,0 +1,4 @@
+@set EDITION 1.0
+@set VERSION 1.0
+@set UPDATED 22 February 2022
+@set UPDATED-MONTH February 2022