Update version info for 1.0.x

Signed-off-by: Nico Huber <nico.h@gmx.de>
diff --git a/versioninfo.inc b/versioninfo.inc
new file mode 100644
index 0000000..5013016
--- /dev/null
+++ b/versioninfo.inc
@@ -0,0 +1,2 @@
+VERSION = 1.0.x
+MAN_DATE = 2023-09-18