Collecting accuracy from geocoordinates

Signed-off-by: Luiz Carlos Cavalcanti <cavalcanti.luiz@gmail.com>
Placeholder for DataTransferService

Signed-off-by: Luiz Carlos Cavalcanti <cavalcanti.luiz@gmail.com>
Relocating DatabaseHelper

Signed-off-by: Luiz Carlos Cavalcanti <cavalcanti.luiz@gmail.com>
Getting signal strenght

Signed-off-by: Luiz Carlos Cavalcanti <cavalcanti.luiz@gmail.com>