add semaphore reset & queue flush API for osal
add semaphore reset when opening control pipe
add project file for keil
fix binary.h compiler specific
add hal_init code to reset & set usbmode --> able to get USB ISR
remove const qualifier from return function of
- get_operational_register
- get_period_frame_list
- get_async_head
- get_period_head
- get_control_qhd
add stub for
- hcd_port_connect_status
- hcd_port_speed
update keil file
add isr api for usbh_hcd
- void usbh_device_plugged_isr(uint8_t hostid, tusb_speed_t speed);
- void usbh_device_unplugged_isr(uint8_t hostid);

implement port_connect_status_isr
implement port hcd_port_connect_status
clean up
add semaphore post in usbh_isr for control pipe
add osal_queue_send in usbh_device_plugged
add macro for placing breakpoint macros
fix ehci init:
- regs->cmd or (add run_stop)
- enable port power in portsc
add tusb_task_runner in main loop
go through all the enumeration (up to get full configuration)
- fix init_qhd for address 0 (clear queue head --> ehci controller halted)
- fix bug in usbh_init missing address0 for semaphore create

TUSB_CFG_DEBUG == 3: --> ATTR_ALWAYS_INLINE is null --> allow gcc to export "normal inline" function