Add USB MissleLauncher sample program

This is sample code that controls a USB missle launcher using USB host APIs

Change-Id: Ic4201faccc4562bf114c70d50b0cab6a00d28a98
Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/samples/USB/_index.html b/samples/USB/_index.html
new file mode 100644
index 0000000..f82011d
--- /dev/null
+++ b/samples/USB/_index.html
@@ -0,0 +1 @@
+<p>A set of samples that demonstrate how to use various features of the USB APIs.</p>
\ No newline at end of file