init Cloud Agent Wifi Module

* create 12 Cloud Agent Command API prototype
* These function has not completed yet

 1. wifi_reset
 2. wifi_cap
 3. get_wifi
 4. set_wifi
 5. schedule_wifi
 6. get_schedule_wifi
 7. get_wifi_client
 8. get_wifi_acl
 9. set_wifi_acl
10. scan_wifi
11. scan_list
12. connect_wifi