install uvosled_test

add legalese
add README

usbshm.h

@@ -1,3 +1,22 @@
+/**
+* UVOS usbled
+* Copyright (C) 2021 Carl Klemm
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License
+* version 3 as published by the Free Software Foundation.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the
+* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+* Boston, MA  02110-1301, USA.
+*/
+
 #include <libusb-1.0/libusb.h>
 #include <pthread.h>
 #include <stdatomic.h>