USBMSD and CDC composite device testing code mixed up from several existing programs/libraries

Dependencies:   USBCDCMSC USBDevice USBFileSystem USBSDFileSystem USBSPIFileSystem mbed

Revision:
0:07ed6626e186
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice.lib	Tue Apr 21 09:15:46 2015 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/mbed_official/code/USBDevice/#a3c50882f2c5