rename OSAL_TASK_DECLARE to OSAL_TASK_FUNCTION
removing TASK_ASSERT to avoid using goto/continue statement with rtos configure
fix potential error with usbh_control_xfer_subtask in subtask_assert
change back to use task_assert style in usbh_enumeraion
change test to task->subtask->subtask style in test/test_osal_none.c
move main work in usbh_enumeration_task to its body subtask for task_assert style
- change OSAL_TASK_FUNCTION to have void* parameter (to be consistent with most popular RTOS)
- add new error enum TUSB_ERROR_OSAL_TASK_CREATE_FAILED
- move usbh_enumeration_task prototype to usbh.h
- change OSAL_SUBTASK_INVOKED_AND_WAIT behavior, will not "return" in calling task when subtask got error status.
calling task need to do that after the call
- osal_queue_receive signature from uint32_t* to void*

- implement osal_freertos.h for FreeRTOS 7.3 --> able to compile & build host_freertos
+ OSAL_TASK_FUNCTION
+ turn on FPU for M4 in both host_os_none & host_freertos (freertos requires FPU to be on to compile)
+ osal_task_create
+ OSAL_SUBTASK_INVOKED_AND_WAIT
+ SUBTASK_ASSERT
+ osal_semaphore_reset
+ osal_queue_flush
+ adding heap_1.c for memory management