add some test for usbh_hcd integration

- add tests for pipe_close  (while TDs are active)
- add tests for device unplugged
add tesst & implement the async_advance_isr to clean up "REMOVING" queue head
- add helper find previous qhd
- add remove qhd from async list
- add is_removing field for async advance isr to clean up
add pipe close for control pipe & bulk pipe (with tests)
add helper get qhd from pipe_handle

tinyusb/common/compiler/compiler.h

@@ -64,7 +64,7 @@
   #endif
 #endif
 
-
+// TODO refractor ATTR_PACKED(x)
 #if defined(__GNUC__)
   #include "compiler_gcc.h"
 #elif defined __ICCARM__ // IAR compiler