move code in host demo to /src in prepare for support freeRTOS projects
move project files to os_none
clear keyboard & mouse report
create a empty test file for hub
add freeRTOS source from vendor to test
remove temp freeRTOS folder in test/support
use test/support/FreeRTOSConfig.h from win32-mingw demo
temporarily disable all tests in test_osal_freeRTOS.c