- addd p_qtd_list_tail to qhd structure for easy queue TD

- move control_request from ehci_data to usbh_device_info_pool
- add test for bulk transfer double (2 consecutive xfers)
- use table (array) structure for class driver, currently included
- refractor extract to function insert_qtd_to_qhd
+ init function
+ install_subtask
--> all class driver function must be declared with WEAK

tinyusb/tusb.h

@@ -58,6 +58,12 @@
   #ifdef HOST_CLASS_HID
     #include "class/hid_host.h"
   #endif
+
+  #define HOST_CLASS_MSC
+  #ifdef HOST_CLASS_MSC
+    #include "class/msc_host.h"
+  #endif
+
 #endif
 
 #if MODE_DEVICE_SUPPORTED