QString to API version 2

Changed QString to API version 2
Support to GPS and Wifi

Added support for work with GPS and Wifi
Wifi class

Wifi class for getting the wifi's routers nearby, returning a string
separated with comma, where the data obtained are: ssid, signal,
channel, security, mac address, type of wifi.
Added support for writting gps and wifi information

Added support for obtaining the wifi's nearby and the latitude and
longitude around.