Added utility functionality

firmware/drivers/utility/utility.cpp

+#include <utility.hpp>
+#include <ad7124_4.hpp>
+#include <ad7124_registers.hpp>
+
+std::array<double,5> Temperatures::temperatures = {0., 0., 0., 0., 0.};
+
+Adc_data readAdc(Ad7124_4* device){
+    Adc_data data;
+    data.valid = false;
+    Spi_selecta::select_device(device);
+    if(device->data_available()){
+        Spi_selecta::deselect_device();
+        Spi_selecta::select_device(device);
+        data.channel = device->read_register(REG_Status, 1);
+        Spi_selecta::deselect_device();
+        Spi_selecta::select_device(device);
+        data.data = device->get_data() & 0x00FFFFFF;
+        Spi_selecta::deselect_device();
+        data.valid = true;
+    }
+    Spi_selecta::deselect_device();
+    return data;
+}

firmware/drivers/utility/utility.hpp

+#ifndef UTILITY_HPP_INCLUDED
+#define UTILITY_HPP_INCLUDED
+#include <ad7124_4.hpp>
+
+struct Adc_data{
+    bool valid;
+    uint32_t channel;
+    uint32_t data;
+};
+
+Adc_Data readAdc(Ad7124_4* device);
+
+struct Temperatures{
+    /*The 0th temperature shall always be the loop, the others the out-of-loops*/
+    static std::array<double, 5> temperatures;
+};
+
+#endif