Added an "Event" tab with a BiddingRoundControl class in it. No connections of signals and slots yet.

UIs/BeetRoundWidgets/widgets/biddingroundcontrol.h

@@ -0,0 +1,41 @@
+#ifndef BIDDINGROUNDCONTROL_H
+#define BIDDINGROUNDCONTROL_H
+
+#include <QWidget>
+#include "model/metadata.h"
+
+class QPushButton;
+class QLabel;
+class QHBoxLayout;
+class BiddingRoundControl : public QWidget {
+  Q_OBJECT
+ public:
+  explicit BiddingRoundControl(QWidget* parent = nullptr);
+
+ signals:
+  void sendGetRequest(GetRequestTypes type);
+
+  void triggerStartNewRound();
+  void triggerRestartLastRound();
+  void triggerStopCurrentRound();
+  // void refreshCurrentRound();
+
+ public slots:
+  /// button slots
+  void onRefreshCurrentRoundTriggered();
+
+  /// event slots
+  void onCurrentBiddingRoundChanged(int roundNumber, bool isActive);
+
+ private:
+  QHBoxLayout* m_layout = nullptr;
+  QLabel* m_title       = nullptr;
+  QLabel* m_status      = nullptr;
+
+  QPushButton* m_newRoundButton     = nullptr;
+  QPushButton* m_restartRoundButton = nullptr;
+  QPushButton* m_stopRoundButton    = nullptr;
+  QPushButton* m_refreshRoundButton = nullptr;
+};
+
+#endif  // BIDDINGROUNDCONTROL_H