added contrib directory for unmaintained 3rd party contributions, starting with

Richard Shaw's and John Morris' systemd unit file from Fedora.



git-svn-id: svn+ssh://svn.code.sf.net/p/spacenav/code/trunk/spacenavd@150 ef983eb1-d774-4af8-acfd-baaf7b16a646

contrib/README

@@ -0,0 +1,3 @@
+Files in the contrib subdirectory are not maintained by the spacenav project
+maintainers. They are just 3rd party contributions included just in case they
+prove useful to anyone.

contrib/systemd/spacenavd.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=3Dconnexion Input Devices Userspace Driver
+After=syslog.target
+
+[Service]
+Type=forking
+PIDFile=/var/run/spnavd.pid
+ExecStart=/usr/bin/spacenavd
+StandardError=syslog
+
+[Install]
+WantedBy=graphical.target