Arduino+PlatformIO Build

For an open source project,

fix dynamic variables while building (cpp defines).

Main : https://github.com/One-Green/iot-edge-agent/blob/main/sprinkler/src/main.cpp
Config.h : https://github.com/One-Green/iot-edge-agent/blob/main/sprinkler/lib/Config/Config.h
platformio.ini : https://github.com/One-Green/iot-edge-agent/blob/main/sprinkler/platformio.ini

Request : pass while building variables defined in platformio.ini to Config.h (String / Integer / boolean)