Added utilities

void printCriticalErrorMsg(QString const &errorMsg);
    void printInfoMsg(QString const &infoMsg);
    void printLineEditInfo(QStringList const &lines);
    QString getTariffLoadTime(QString fileName);

utils.h

@@ -3,11 +3,18 @@
 
 #include <QObject>
 #include <QString>
+#include <QStringList>
 #include <QFile>
+#include <QFileInfo>
+#include <QDateTime>
 
 namespace Utils {
     int read1stLineOfFile(QString fileName);
     QString zoneName(quint8 i);
+    void printCriticalErrorMsg(QString const &errorMsg);
+    void printInfoMsg(QString const &infoMsg);
+    void printLineEditInfo(QStringList const &lines);
+    QString getTariffLoadTime(QString fileName);
 }
 
 #endif // UTILS_H_INCLUDED