Add hardware support for GPS, MAX7219, BME280, and MQ7 sensors

- Implemented GPS functionality with initialization and reading latitude and longitude.
- Added MAX7219 display support, including initialization, text display, animation control, and brightness settings.
- Integrated BME280 sensor for reading temperature, pressure, and humidity.
- Developed MQ7 sensor interface for reading gas concentration values.
- Created HTTP client for GET and POST requests.
- Implemented MQTT client for message handling and connection management.
- Added JSON serialization and deserialization functions for sensor and actuator data.
- Established WiFi connection setup for network communication.

hardware/include/MQ7.hpp

@@ -4,4 +4,4 @@
 #define DIGITAL_MQ7 32
  
 void MQ7_Init();
-void MQ7_Read();
+void MQ7_Read(float &sensorVolt, float &RSAir, float &R0, float &sensorValue);