add remaining files needed

Makefile_

@@ -0,0 +1,29 @@
+# M. Zolliker 04.2017
+# this file shows the correct usage of make for SeaClient
+
+%: usage
+	@echo
+
+%.o: usage
+	@echo
+
+default: usage
+
+usage:
+	@ echo ""
+	@ echo "Usage:"
+	@ echo ""
+	@ echo '  with Makefile_<linuxsys> one of'
+	@ echo ""
+	@ ls -1 Makefile_?* | pr -t -o 4
+	@ echo ""
+	@ echo "  use make without args:"
+	@ echo ""
+	@ echo "    setenv linuxsys <linuxsys>"
+	@ echo "    make [target]"
+	@ echo ""
+	@ echo "  for a new <linuxsys>, you may edit SeaClient.pro"
+	@ echo "  and then create the makefile:"
+	@ echo ""
+	@ echo "    qmake -o Makefile_<linuxsys> SeaClient.pro"
+