Added new validator, userform validation

core/samestringvalidator.h

@@ -0,0 +1,15 @@
+#ifndef SAMESTRINGVALIDATOR_H
+#define SAMESTRINGVALIDATOR_H
+#include "ivalidator.h"
+#include "core_global.h"
+
+class CORESHARED_EXPORT SameStringValidator : public IValidator
+{
+public:
+    SameStringValidator(QWidget * widget_1, QWidget *widget_2, const QString &errorMessage);
+    bool validate();
+private:
+QWidget * m_widget_2;
+};
+
+#endif // SAMESTRINGVALIDATOR_H